diff --git a/Code/Framework/AzFramework/Tests/OctreeTests.cpp b/Code/Framework/AzFramework/Tests/OctreeTests.cpp
index 3faf98adfb..f248dbfa66 100644
--- a/Code/Framework/AzFramework/Tests/OctreeTests.cpp
+++ b/Code/Framework/AzFramework/Tests/OctreeTests.cpp
@@ -98,7 +98,7 @@ namespace UnitTest
         // If an entry is removed from the octree as an unintended side effect of updating an existing entry,
         // GetEntryCount can't be relied upon to report the actual entry count.
         // So manually count the entries when using the entry count for validation.
-        uint32_t manualEntryCount = 0;
+        size_t manualEntryCount = 0;
         visScene->EnumerateNoCull([&manualEntryCount](const AzFramework::IVisibilityScene::NodeData& nodeData) { manualEntryCount += nodeData.m_entries.size(); });
 
         EXPECT_EQ(manualEntryCount, expectedEntryCount);
@@ -409,7 +409,7 @@ namespace UnitTest
         }
 
         // Expect all the entries to be in the scene
-        ValidateEntryCountEqualsExpectedCount(m_octreeScene, visEntries.size());
+        ValidateEntryCountEqualsExpectedCount(m_octreeScene, static_cast<uint32_t>(visEntries.size()));
 
         // Update them, without making any actual changes
         for (AzFramework::VisibilityEntry& entry : visEntries)
@@ -418,6 +418,6 @@ namespace UnitTest
         }
 
         // Expect all the entries to be in the scene
-        ValidateEntryCountEqualsExpectedCount(m_octreeScene, visEntries.size());
+        ValidateEntryCountEqualsExpectedCount(m_octreeScene, static_cast<uint32_t>(visEntries.size()));
     }
 }
diff --git a/Code/Framework/AzNetworking/AzNetworking/TcpTransport/TcpConnection.cpp b/Code/Framework/AzNetworking/AzNetworking/TcpTransport/TcpConnection.cpp
index 1beb83e19f..6d7358a425 100644
--- a/Code/Framework/AzNetworking/AzNetworking/TcpTransport/TcpConnection.cpp
+++ b/Code/Framework/AzNetworking/AzNetworking/TcpTransport/TcpConnection.cpp
@@ -170,7 +170,7 @@ namespace AzNetworking
             }
             timeoutItem->UpdateTimeoutTime(startTimeMs);
 
-            NetworkOutputSerializer serializer(buffer.GetBuffer(), buffer.GetSize());
+            NetworkOutputSerializer serializer(buffer.GetBuffer(), static_cast<uint32_t>(buffer.GetSize()));
             if (m_state == ConnectionState::Connecting)
             {
                 const ConnectResult connectResult = m_networkInterface.GetConnectionListener().ValidateConnect(GetRemoteAddress(), header, serializer);
@@ -198,7 +198,7 @@ namespace AzNetworking
     {
         TcpPacketEncodingBuffer buffer;
         {
-            NetworkInputSerializer serializer(buffer.GetBuffer(), buffer.GetCapacity());
+            NetworkInputSerializer serializer(buffer.GetBuffer(), static_cast<uint32_t>(buffer.GetCapacity()));
             if (!const_cast<IPacket&>(packet).Serialize(serializer))
             {
                 AZ_Assert(false, "SendReliablePacket: Unable to serialize packet [Type: %d]", packet.GetPacketType());
@@ -272,7 +272,7 @@ namespace AzNetworking
         {
             TcpPacketHeader header(packetType, aznumeric_cast<uint16_t>(payloadBuffer.GetSize()));
             header.SetPacketFlag(PacketFlag::Compressed, shouldCompress);
-            NetworkInputSerializer serializer(headerBuffer.GetBuffer(), headerBuffer.GetCapacity());
+            NetworkInputSerializer serializer(headerBuffer.GetBuffer(), static_cast<uint32_t>(headerBuffer.GetCapacity()));
             if (!header.Serialize(serializer))
             {
                 return false;
@@ -313,7 +313,7 @@ namespace AzNetworking
             m_networkInterface.GetMetrics().m_sendBytesCompressedDelta += (payloadSize - compressionMemBytesUsed);
 
             writeBuffer.Resize(aznumeric_cast<int32_t>(compressionMemBytesUsed));
-            payloadSize = writeBuffer.GetSize();
+            payloadSize = static_cast<uint32_t>(writeBuffer.GetSize());
             srcData = writeBuffer.GetBuffer();
         }
 
diff --git a/Code/Framework/AzNetworking/AzNetworking/TcpTransport/TcpRingBuffer.inl b/Code/Framework/AzNetworking/AzNetworking/TcpTransport/TcpRingBuffer.inl
index 322a4e6abf..9c4b2f1a17 100644
--- a/Code/Framework/AzNetworking/AzNetworking/TcpTransport/TcpRingBuffer.inl
+++ b/Code/Framework/AzNetworking/AzNetworking/TcpTransport/TcpRingBuffer.inl
@@ -12,7 +12,7 @@ namespace AzNetworking
 {
     template <uint32_t SIZE>
     inline TcpRingBuffer<SIZE>::TcpRingBuffer()
-        : m_impl(m_buffer.data(), m_buffer.size())
+        : m_impl(m_buffer.data(), static_cast<uint32_t>(m_buffer.size()))
     {
         ;
     }
diff --git a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/DtlsEndpoint.cpp b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/DtlsEndpoint.cpp
index 37c952cf30..bd5e62983f 100644
--- a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/DtlsEndpoint.cpp
+++ b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/DtlsEndpoint.cpp
@@ -84,7 +84,7 @@ namespace AzNetworking
         if (dtlsData.GetSize() > 0)
         {
             const uint8_t* encryptedData = dtlsData.GetBuffer();
-            const uint32_t encryptedSize = dtlsData.GetSize();
+            const uint32_t encryptedSize = static_cast<uint32_t>(dtlsData.GetSize());
             BIO_write(m_readBio, encryptedData, encryptedSize);
         }
         DtlsEndpoint::HandshakeState prevState = m_state;
@@ -196,7 +196,7 @@ namespace AzNetworking
         // Need to do this... connection negotiation may have left data in the write bio that we need to send out
         if (BIO_ctrl_pending(m_writeBio) > 0)
         {
-            const uint32_t maxBufferSize = outHandshakeData.GetCapacity();
+            const uint32_t maxBufferSize = static_cast<uint32_t>(outHandshakeData.GetCapacity());
             outHandshakeData.Resize(maxBufferSize);
             const int32_t dataSize = BIO_read(m_writeBio, outHandshakeData.GetBuffer(), maxBufferSize);
             outHandshakeData.Resize(dataSize);
diff --git a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpFragmentQueue.cpp b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpFragmentQueue.cpp
index 831c35552c..66fe6f30eb 100644
--- a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpFragmentQueue.cpp
+++ b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpFragmentQueue.cpp
@@ -108,7 +108,7 @@ namespace AzNetworking
                 return true;
             }
 
-            totalPacketSize += packetFragments[index]->GetChunkBuffer().GetSize();
+            totalPacketSize += static_cast<uint32_t>(packetFragments[index]->GetChunkBuffer().GetSize());
         }
 
         // We now mark this sequence as delivered, so if by some chance all the individual chunks get redelivered again we don't double deliver the reconstructed packet
@@ -125,7 +125,7 @@ namespace AzNetworking
         uint8_t* bufferPointer = buffer.GetBuffer();
         for (uint32_t index = 0; index < packetFragments.size(); ++index)
         {
-            const uint32_t chunkSize = packetFragments[index]->GetChunkBuffer().GetSize();
+            const uint32_t chunkSize = static_cast<uint32_t>(packetFragments[index]->GetChunkBuffer().GetSize());
             memcpy(bufferPointer, packetFragments[index]->GetChunkBuffer().GetBuffer(), chunkSize);
             bufferPointer += chunkSize;
         }
@@ -133,7 +133,7 @@ namespace AzNetworking
         // We can erase all the chunks now, packet is completed
         m_packetFragments.erase(fragmentSequence);
 
-        NetworkOutputSerializer networkSerializer(buffer.GetBuffer(), buffer.GetSize());
+        NetworkOutputSerializer networkSerializer(buffer.GetBuffer(), static_cast<uint32_t>(buffer.GetSize()));
         {
             ISerializer& networkISerializer = networkSerializer; // To get the default typeinfo parameters in ISerializer
 
diff --git a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpNetworkInterface.cpp b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpNetworkInterface.cpp
index a3ddb856d2..e3ab11c117 100644
--- a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpNetworkInterface.cpp
+++ b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpNetworkInterface.cpp
@@ -249,7 +249,7 @@ namespace AzNetworking
                     continue;
                 }
                 decodedPacketData = m_decompressBuffer.GetBuffer();
-                decodedPacketSize = m_decompressBuffer.GetSize();
+                decodedPacketSize = static_cast<int32_t>(m_decompressBuffer.GetSize());
             }
             GetMetrics().m_recvBytesUncompressed += decodedPacketSize;
 
@@ -494,7 +494,7 @@ namespace AzNetworking
         {
             buffer.Resize(buffer.GetCapacity());
 
-            NetworkInputSerializer networkSerializer(buffer.GetBuffer(), buffer.GetCapacity());
+            NetworkInputSerializer networkSerializer(buffer.GetBuffer(), static_cast<uint32_t>(buffer.GetCapacity()));
             ISerializer& serializer = networkSerializer; // To get the default typeinfo parameters in ISerializer
 
             if (!header.SerializePacketFlags(serializer))
@@ -517,7 +517,7 @@ namespace AzNetworking
 
             buffer.Resize(serializer.GetSize());
         }
-        uint32_t packetSize = buffer.GetSize();
+        uint32_t packetSize = static_cast<uint32_t>(buffer.GetSize());
         uint8_t* packetData = buffer.GetBuffer();
 
         // If the packet doesn't fit within our MTU (minus potential SSL encryption overhead), break it up
@@ -549,7 +549,7 @@ namespace AzNetworking
         UdpPacketEncodingBuffer writeBuffer;
         if (m_compressor && shouldCompress)
         {
-            NetworkInputSerializer flagSerializer(writeBuffer.GetBuffer(), writeBuffer.GetCapacity());
+            NetworkInputSerializer flagSerializer(writeBuffer.GetBuffer(), static_cast<uint32_t>(writeBuffer.GetCapacity()));
             ISerializer& serializer = flagSerializer; // To get the default typeinfo parameters in ISerializer
 
             header.SetPacketFlag(PacketFlag::Compressed, true);
@@ -562,7 +562,7 @@ namespace AzNetworking
             AZ_Assert(flagSize == 1, "Flag bitfield should serialize to one byte");
 
             // Compress the packet, make sure to offset by the size of the flag which is now serialized
-            const uint32_t payloadSize = buffer.GetSize() - flagSize;
+            const uint32_t payloadSize = static_cast<uint32_t>(buffer.GetSize() - flagSize);
             uint8_t* payload = buffer.GetBuffer() + flagSize;
             const AZStd::size_t maxSizeNeeded = m_compressor->GetMaxCompressedBufferSize(payloadSize);
             AZStd::size_t compressionMemBytesUsed = 0;
@@ -578,7 +578,7 @@ namespace AzNetworking
             if (compressionMemBytesUsed < payloadSize)
             {
                 writeBuffer.Resize(aznumeric_cast<int32_t>(flagSize + compressionMemBytesUsed));
-                packetSize = writeBuffer.GetSize();
+                packetSize = static_cast<uint32_t>(writeBuffer.GetSize());
                 packetData = writeBuffer.GetBuffer();
                 // Track byte delta caused by compression
                 GetMetrics().m_sendBytesCompressedDelta += (packetSize - compressionMemBytesUsed);
diff --git a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpReaderThread.cpp b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpReaderThread.cpp
index 8b535e01aa..b1474bc10f 100644
--- a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpReaderThread.cpp
+++ b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpReaderThread.cpp
@@ -177,7 +177,7 @@ namespace AzNetworking
                 }
 
                 IpAddress address;
-                const uint32_t bufferHead = receiveBuffer.GetSize();
+                const uint32_t bufferHead = static_cast<uint32_t>(receiveBuffer.GetSize());
                 if (bufferHead + MaxUdpTransmissionUnit >= receiveBuffer.GetCapacity())
                 {
                     AZLOG_INFO("Receive buffer full, leaving data on the socket. Size exceeded by %d",
diff --git a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpSocket.cpp b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpSocket.cpp
index 29a99f96a1..997fc323a9 100644
--- a/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpSocket.cpp
+++ b/Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpSocket.cpp
@@ -241,7 +241,7 @@ namespace AzNetworking
 #ifdef ENABLE_LATENCY_DEBUG
     int32_t UdpSocket::SendInternalDeferred(const DeferredData& data) const
     {
-        return SendInternal(data.m_address, data.m_dataBuffer.GetBuffer(), data.m_dataBuffer.GetSize(), data.m_encrypt, *data.m_dtlsEndpoint);
+        return SendInternal(data.m_address, data.m_dataBuffer.GetBuffer(), static_cast<uint32_t>(data.m_dataBuffer.GetSize()), data.m_encrypt, *data.m_dtlsEndpoint);
     }
 #endif
 }
diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/Application/ToolsApplication.h b/Code/Framework/AzToolsFramework/AzToolsFramework/Application/ToolsApplication.h
index e95b306d43..e7fa543faf 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/Application/ToolsApplication.h
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/Application/ToolsApplication.h
@@ -98,7 +98,7 @@ namespace AzToolsFramework
         SourceControlFileInfo GetSceneSourceControlInfo() override;
 
         bool AreAnyEntitiesSelected() override { return !m_selectedEntities.empty(); }
-        int GetSelectedEntitiesCount() override { return m_selectedEntities.size(); }
+        int GetSelectedEntitiesCount() override { return static_cast<int>(m_selectedEntities.size()); }
         const EntityIdList& GetSelectedEntities() override { return m_selectedEntities; }
         const EntityIdList& GetHighlightedEntities() override { return m_highlightedEntities; }
         void SetSelectedEntities(const EntityIdList& selectedEntities) override;
diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/Asset/AssetUtils.cpp b/Code/Framework/AzToolsFramework/AzToolsFramework/Asset/AssetUtils.cpp
index 69ee4e6188..92c8d37540 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/Asset/AssetUtils.cpp
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/Asset/AssetUtils.cpp
@@ -34,8 +34,6 @@ namespace AzToolsFramework::AssetUtils::Internal
             return {};
         }
 
-        const int pathLen = sourceFolder.length() + 1;
-
         AZ::IO::Path sourceWildcard{ sourceFolder };
 
 
diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Instance/InstanceToTemplatePropagator.cpp b/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Instance/InstanceToTemplatePropagator.cpp
index c7bf72ff7b..d51630cd86 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Instance/InstanceToTemplatePropagator.cpp
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Instance/InstanceToTemplatePropagator.cpp
@@ -164,7 +164,7 @@ namespace AzToolsFramework
 
                 AZStd::string path = prefix + pathIter->value.GetString();
 
-                pathIter->value.SetString(path.c_str(), path.length(), providedPatch.GetAllocator());
+                pathIter->value.SetString(path.c_str(), static_cast<rapidjson::SizeType>(path.length()), providedPatch.GetAllocator());
             }
         }
 
diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Instance/InstanceUpdateExecutor.cpp b/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Instance/InstanceUpdateExecutor.cpp
index 1c389f6b97..9ef74167a6 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Instance/InstanceUpdateExecutor.cpp
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Instance/InstanceUpdateExecutor.cpp
@@ -97,7 +97,7 @@ namespace AzToolsFramework
                 m_updatingTemplateInstancesInQueue = true;
 
                 const int instanceCountToUpdateInBatch =
-                    m_instanceCountToUpdateInBatch == 0 ? m_instancesUpdateQueue.size() : m_instanceCountToUpdateInBatch;
+                    m_instanceCountToUpdateInBatch == 0 ? static_cast<int>(m_instancesUpdateQueue.size()) : m_instanceCountToUpdateInBatch;
                 TemplateId currentTemplateId = InvalidTemplateId;
                 TemplateReference currentTemplateReference = AZStd::nullopt;
 
diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabPublicHandler.cpp b/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabPublicHandler.cpp
index 16db933192..fdefe5900a 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabPublicHandler.cpp
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabPublicHandler.cpp
@@ -1445,7 +1445,7 @@ namespace AzToolsFramework
                 if (&owningInstance->get() == &commonRootEntityOwningInstance)
                 {
                     // If it's the same instance, we can add this entity to the new instance entities.
-                    int priorEntitiesSize = entities.size();
+                    size_t priorEntitiesSize = entities.size();
                     
                     entities.insert(entity);
 
@@ -1624,7 +1624,7 @@ namespace AzToolsFramework
                 entityDomAfter.Parse(newEntityDomString.toUtf8().constData());
 
                 // Add the new Entity DOM to the Entities member of the instance
-                rapidjson::Value aliasName(newEntityAlias.c_str(), newEntityAlias.length(), domToAddDuplicatedEntitiesUnder.GetAllocator());
+                rapidjson::Value aliasName(newEntityAlias.c_str(), static_cast<rapidjson::SizeType>(newEntityAlias.length()), domToAddDuplicatedEntitiesUnder.GetAllocator());
                 entitiesIter->value.AddMember(AZStd::move(aliasName), entityDomAfter, domToAddDuplicatedEntitiesUnder.GetAllocator());
             }
 
@@ -1696,7 +1696,7 @@ namespace AzToolsFramework
                 nestedInstanceDomAfter.Parse(newInstanceDomString.toUtf8().constData());
 
                 // Add the new Instance DOM to the Instances member of the instance
-                rapidjson::Value aliasName(newInstanceAlias.c_str(), newInstanceAlias.length(), domToAddDuplicatedInstancesUnder.GetAllocator());
+                rapidjson::Value aliasName(newInstanceAlias.c_str(), static_cast<rapidjson::SizeType>(newInstanceAlias.length()), domToAddDuplicatedInstancesUnder.GetAllocator());
                 instancesIter->value.AddMember(AZStd::move(aliasName), nestedInstanceDomAfter, domToAddDuplicatedInstancesUnder.GetAllocator());
             }
 
diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/PythonTerminal/ScriptHelpDialog.cpp b/Code/Framework/AzToolsFramework/AzToolsFramework/PythonTerminal/ScriptHelpDialog.cpp
index 0a2fbb14f6..ea13d368cd 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/PythonTerminal/ScriptHelpDialog.cpp
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/PythonTerminal/ScriptHelpDialog.cpp
@@ -251,7 +251,7 @@ namespace AzToolsFramework
         {
             EditorPythonConsoleInterface::GlobalFunctionCollection globalFunctionCollection;
             editorPythonConsoleInterface->GetGlobalFunctionList(globalFunctionCollection);
-            m_items.reserve(globalFunctionCollection.size());
+            m_items.reserve(static_cast<int>(globalFunctionCollection.size()));
             for (const EditorPythonConsoleInterface::GlobalFunction& globalFunction : globalFunctionCollection)
             {
                 Item item;
diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/UI/Outliner/EntityOutlinerListModel.cpp b/Code/Framework/AzToolsFramework/AzToolsFramework/UI/Outliner/EntityOutlinerListModel.cpp
index 30b3f8915b..4115fe409e 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/UI/Outliner/EntityOutlinerListModel.cpp
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/UI/Outliner/EntityOutlinerListModel.cpp
@@ -247,7 +247,7 @@ namespace AzToolsFramework
                         if (highlightTextIndex >= 0)
                         {
                             const QString BACKGROUND_COLOR{ "#707070" };
-                            label.insert(highlightTextIndex + m_filterString.length(), "</span>");
+                            label.insert(highlightTextIndex + static_cast<int>(m_filterString.length()), "</span>");
                             label.insert(highlightTextIndex, "<span style=\"background-color: " + BACKGROUND_COLOR + "\">");
                         }
                     } while(highlightTextIndex > 0);
diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/UI/PropertyEditor/EntityPropertyEditor.cpp b/Code/Framework/AzToolsFramework/AzToolsFramework/UI/PropertyEditor/EntityPropertyEditor.cpp
index 17155076ec..f166e85ff9 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/UI/PropertyEditor/EntityPropertyEditor.cpp
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/UI/PropertyEditor/EntityPropertyEditor.cpp
@@ -2643,22 +2643,22 @@ namespace AzToolsFramework
         m_gui->m_statusComboBox->setItalic(false);
         if (allActive)
         {
-            m_gui->m_statusComboBox->setHeaderOverride(m_itemNames[StatusTypeToIndex(StatusType::StatusStartActive)]);
-            m_gui->m_statusComboBox->setCurrentIndex(StatusTypeToIndex(StatusType::StatusStartActive));
+            m_gui->m_statusComboBox->setHeaderOverride(m_itemNames[static_cast<int>(StatusTypeToIndex(StatusType::StatusStartActive))]);
+            m_gui->m_statusComboBox->setCurrentIndex(static_cast<int>(StatusTypeToIndex(StatusType::StatusStartActive)));
             m_comboItems[StatusTypeToIndex(StatusType::StatusStartActive)]->setCheckState(Qt::Checked);
         }
         else
         if (allInactive)
         {
-            m_gui->m_statusComboBox->setHeaderOverride(m_itemNames[StatusTypeToIndex(StatusType::StatusStartInactive)]);
-            m_gui->m_statusComboBox->setCurrentIndex(StatusTypeToIndex(StatusType::StatusStartInactive));
+            m_gui->m_statusComboBox->setHeaderOverride(m_itemNames[static_cast<int>(StatusTypeToIndex(StatusType::StatusStartInactive))]);
+            m_gui->m_statusComboBox->setCurrentIndex(static_cast<int>(StatusTypeToIndex(StatusType::StatusStartInactive)));
             m_comboItems[StatusTypeToIndex(StatusType::StatusStartInactive)]->setCheckState(Qt::Checked);
         }
         else
         if (allEditorOnly)
         {
-            m_gui->m_statusComboBox->setHeaderOverride(m_itemNames[StatusTypeToIndex(StatusType::StatusEditorOnly)]);
-            m_gui->m_statusComboBox->setCurrentIndex(StatusTypeToIndex(StatusType::StatusEditorOnly));
+            m_gui->m_statusComboBox->setHeaderOverride(m_itemNames[static_cast<int>(StatusTypeToIndex(StatusType::StatusEditorOnly))]);
+            m_gui->m_statusComboBox->setCurrentIndex(static_cast<int>(StatusTypeToIndex(StatusType::StatusEditorOnly)));
             m_comboItems[StatusTypeToIndex(StatusType::StatusEditorOnly)]->setCheckState(Qt::Checked);
         }
         else // Some marked active, some not
diff --git a/Code/Framework/AzToolsFramework/Tests/Prefab/Benchmark/PrefabBenchmarkFixture.cpp b/Code/Framework/AzToolsFramework/Tests/Prefab/Benchmark/PrefabBenchmarkFixture.cpp
index 51a044e9c1..7e47fa9569 100644
--- a/Code/Framework/AzToolsFramework/Tests/Prefab/Benchmark/PrefabBenchmarkFixture.cpp
+++ b/Code/Framework/AzToolsFramework/Tests/Prefab/Benchmark/PrefabBenchmarkFixture.cpp
@@ -110,8 +110,8 @@ namespace Benchmark
 
     void BM_Prefab::SetUpMockValidatorForReadPrefab()
     {
-        int pathCount = m_paths.size();
-        for (int number = 0; number < pathCount; ++number)
+        const size_t pathCount = m_paths.size();
+        for (size_t number = 0; number < pathCount; ++number)
         {
             m_mockIOActionValidator->ReadPrefabDom(
                 m_paths[number], UnitTest::PrefabTestDomUtils::CreatePrefabDom());
diff --git a/Code/Framework/AzToolsFramework/Tests/Prefab/PrefabTestDomUtils.h b/Code/Framework/AzToolsFramework/Tests/Prefab/PrefabTestDomUtils.h
index 66ad2fbe44..f90a91ea3c 100644
--- a/Code/Framework/AzToolsFramework/Tests/Prefab/PrefabTestDomUtils.h
+++ b/Code/Framework/AzToolsFramework/Tests/Prefab/PrefabTestDomUtils.h
@@ -38,7 +38,7 @@ namespace UnitTest
             const EntityAlias& entityAlias)
         {
             return GetPrefabDomEntitiesPath()
-                .Append(entityAlias.c_str(), entityAlias.length());
+                .Append(entityAlias.c_str(), static_cast<rapidjson::SizeType>(entityAlias.length()));
         };
 
         inline PrefabDomPath GetPrefabDomEntityNamePath(
@@ -62,7 +62,7 @@ namespace UnitTest
         inline PrefabDomPath GetPrefabDomInstancePath(
             const InstanceAlias& instanceAlias)
         {
-            return GetPrefabDomInstancesPath().Append(instanceAlias.c_str(), instanceAlias.length());
+            return GetPrefabDomInstancesPath().Append(instanceAlias.c_str(), static_cast<rapidjson::SizeType>(instanceAlias.length()));
         };
 
         inline PrefabDomPath GetPrefabDomInstancePath(