diff --git a/Gems/EMotionFX/Code/EMotionFX/CommandSystem/Source/ActorInstanceCommands.cpp b/Gems/EMotionFX/Code/EMotionFX/CommandSystem/Source/ActorInstanceCommands.cpp
index 60f03f170e..45603b298e 100644
--- a/Gems/EMotionFX/Code/EMotionFX/CommandSystem/Source/ActorInstanceCommands.cpp
+++ b/Gems/EMotionFX/Code/EMotionFX/CommandSystem/Source/ActorInstanceCommands.cpp
@@ -492,7 +492,7 @@ namespace CommandSystem
         commandString = AZStd::string::format("CreateActorInstance -actorID %i -actorInstanceID %i", mOldActorID, actorInstanceID);
         commandGroup.AddCommandString(commandString.c_str());
 
-        commandString = AZStd::string::format("AdjustActorInstance -actorInstanceID %i -pos \"%s\" -rot \"%s\" -scale \"%s\" -lodLevel %d -isVisible \"%s\" -doRender \"%s\"",
+        commandString = AZStd::string::format("AdjustActorInstance -actorInstanceID %i -pos \"%s\" -rot \"%s\" -scale \"%s\" -lodLevel %zu -isVisible \"%s\" -doRender \"%s\"",
             actorInstanceID,
             AZStd::to_string(mOldPosition).c_str(),
             AZStd::to_string(mOldRotation).c_str(),
diff --git a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/AnimGraph/BlendGraphWidget.cpp b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/AnimGraph/BlendGraphWidget.cpp
index edf5579720..5d57763ea6 100644
--- a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/AnimGraph/BlendGraphWidget.cpp
+++ b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/AnimGraph/BlendGraphWidget.cpp
@@ -1475,10 +1475,10 @@ namespace EMStudio
                     if (animGraphNode->GetCanHaveChildren())
                     {
                         // child nodes
-                        toolTipString += AZStd::string::format("<tr><td><b><nobr>Child Nodes:</nobr></b></td><td>%i</td></tr>", animGraphNode->GetNumChildNodes());
+                        toolTipString += AZStd::string::format("<tr><td><b><nobr>Child Nodes:</nobr></b></td><td>%zu</td></tr>", animGraphNode->GetNumChildNodes());
 
                         // recursive child nodes
-                        toolTipString += AZStd::string::format("<tr><td width=\"140\"><b><nobr>Recursive Child Nodes:</nobr></b></td><td>%i</td></tr>", animGraphNode->RecursiveCalcNumNodes());
+                        toolTipString += AZStd::string::format("<tr><td width=\"140\"><b><nobr>Recursive Child Nodes:</nobr></b></td><td>%zu</td></tr>", animGraphNode->RecursiveCalcNumNodes());
                     }
 
                     // states
diff --git a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/Attachments/AttachmentsWindow.cpp b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/Attachments/AttachmentsWindow.cpp
index 2ffc56d25b..4b971f9c32 100644
--- a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/Attachments/AttachmentsWindow.cpp
+++ b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/Attachments/AttachmentsWindow.cpp
@@ -268,7 +268,7 @@ namespace EMStudio
             QTableWidgetItem* tableItemName         = new QTableWidgetItem(mTempString.c_str());
             mTempString = attachment->GetIsInfluencedByMultipleJoints() ? "Yes" : "No";
             QTableWidgetItem* tableItemDeformable   = new QTableWidgetItem(mTempString.c_str());
-            mTempString = AZStd::string::format("%i", attachmentInstance->GetNumNodes());
+            mTempString = AZStd::string::format("%zu", attachmentInstance->GetNumNodes());
             QTableWidgetItem* tableItemNumNodes     = new QTableWidgetItem(mTempString.c_str());
             QTableWidgetItem* tableItemNodeName     = new QTableWidgetItem("");
             // set node name if exists
diff --git a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/MorphTargetEditWindow.cpp b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/MorphTargetEditWindow.cpp
index 278159e4d0..a53ed94909 100644
--- a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/MorphTargetEditWindow.cpp
+++ b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/MorphTargetEditWindow.cpp
@@ -149,7 +149,7 @@ namespace EMStudio
         const float rangeMax = (float)mRangeMax->value();
 
         AZStd::string result;
-        AZStd::string command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %i -name \"%s\" -rangeMin %f -rangeMax %f", mActorInstance->GetID(), mActorInstance->GetLODLevel(), mMorphTarget->GetNameString().c_str(), rangeMin, rangeMax);
+        AZStd::string command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %zu -name \"%s\" -rangeMin %f -rangeMax %f", mActorInstance->GetID(), mActorInstance->GetLODLevel(), mMorphTarget->GetNameString().c_str(), rangeMin, rangeMax);
         if (EMStudio::GetCommandManager()->ExecuteCommand(command, result) == false)
         {
             AZ_Error("EMotionFX", false, result.c_str());
diff --git a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/MorphTargetGroupWidget.cpp b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/MorphTargetGroupWidget.cpp
index 9d75f648b1..aee88f9394 100644
--- a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/MorphTargetGroupWidget.cpp
+++ b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/MorphTargetGroupWidget.cpp
@@ -133,7 +133,7 @@ namespace EMStudio
         {
             EMotionFX::MorphTarget* morphTarget = mMorphTargets[i].mMorphTarget;
 
-            command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %i -name \"%s\" -manualMode ", mActorInstance->GetID(), mActorInstance->GetLODLevel(), morphTarget->GetName());
+            command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %zu -name \"%s\" -manualMode ", mActorInstance->GetID(), mActorInstance->GetLODLevel(), morphTarget->GetName());
             command += AZStd::to_string(value == Qt::Checked);
             commandGroup.AddCommandString(command);
         }
@@ -159,7 +159,7 @@ namespace EMStudio
         {
             EMotionFX::MorphTarget* morphTarget = mMorphTargets[i].mMorphTarget;
 
-            command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %i -name \"%s\" -weight %f", mActorInstance->GetID(), mActorInstance->GetLODLevel(), morphTarget->GetName(), morphTarget->CalcZeroInfluenceWeight());
+            command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %zu -name \"%s\" -weight %f", mActorInstance->GetID(), mActorInstance->GetLODLevel(), morphTarget->GetName(), morphTarget->CalcZeroInfluenceWeight());
             commandGroup.AddCommandString(command);
         }
 
@@ -179,7 +179,7 @@ namespace EMStudio
         EMotionFX::MorphTarget* morphTarget = mMorphTargets[morphTargetIndex].mMorphTarget;
 
         AZStd::string result;
-        const AZStd::string command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %i -name \"%s\" -weight %f -manualMode %s", 
+        const AZStd::string command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %zu -name \"%s\" -weight %f -manualMode %s", 
             mActorInstance->GetID(), 
             mActorInstance->GetLODLevel(), 
             morphTarget->GetName(), 
@@ -219,7 +219,7 @@ namespace EMStudio
 
         // execute command
         AZStd::string result;
-        const AZStd::string command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %i -name \"%s\" -weight %f", mActorInstance->GetID(), mActorInstance->GetLODLevel(), morphTarget->GetName(), floatSlider->value());
+        const AZStd::string command = AZStd::string::format("AdjustMorphTarget -actorInstanceID %i -lodLevel %zu -name \"%s\" -weight %f", mActorInstance->GetID(), mActorInstance->GetLODLevel(), morphTarget->GetName(), floatSlider->value());
         if (EMStudio::GetCommandManager()->ExecuteCommand(command, result) == false)
         {
             AZ_Error("EMotionFX", false, result.c_str());
diff --git a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/PhonemeSelectionWindow.cpp b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/PhonemeSelectionWindow.cpp
index 910f8456e5..5619398c67 100644
--- a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/PhonemeSelectionWindow.cpp
+++ b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MorphTargetsWindow/PhonemeSelectionWindow.cpp
@@ -523,7 +523,7 @@ namespace EMStudio
     // clear the selected phoneme sets
     void PhonemeSelectionWindow::ClearSelectedPhonemeSets()
     {
-        const AZStd::string command = AZStd::string::format("AdjustMorphTarget -actorID %i -lodLevel %i -name \"%s\" -phonemeAction \"clear\"", mActor->GetID(), mLODLevel, mMorphTarget->GetName());
+        const AZStd::string command = AZStd::string::format("AdjustMorphTarget -actorID %i -lodLevel %zu -name \"%s\" -phonemeAction \"clear\"", mActor->GetID(), mLODLevel, mMorphTarget->GetName());
 
         AZStd::string result;
         if (!EMStudio::GetCommandManager()->ExecuteCommand(command, result))
diff --git a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MotionSetsWindow/MotionSetWindow.cpp b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MotionSetsWindow/MotionSetWindow.cpp
index 0ab738a259..19f28c36e0 100644
--- a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MotionSetsWindow/MotionSetWindow.cpp
+++ b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/MotionSetsWindow/MotionSetWindow.cpp
@@ -409,7 +409,7 @@ namespace EMStudio
 
         commandGroup.AddCommandString("Unselect -motionIndex SELECT_ALL");
 
-        command = AZStd::string::format("Select -motionIndex %d", EMotionFX::GetMotionManager().FindMotionIndexByID(motion->GetID()));
+        command = AZStd::string::format("Select -motionIndex %zu", EMotionFX::GetMotionManager().FindMotionIndexByID(motion->GetID()));
         commandGroup.AddCommandString(command);
 
         EMotionFX::PlayBackInfo* defaultPlayBackInfo = motion->GetDefaultPlayBackInfo();
diff --git a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/TimeView/TimeViewPlugin.cpp b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/TimeView/TimeViewPlugin.cpp
index 2ca600596a..6ff8ea3775 100644
--- a/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/TimeView/TimeViewPlugin.cpp
+++ b/Gems/EMotionFX/Code/EMotionFX/Tools/EMotionStudio/Plugins/StandardPlugins/Source/TimeView/TimeViewPlugin.cpp
@@ -1575,7 +1575,7 @@ namespace EMStudio
 
         // adjust the motion event
         AZStd::string outResult, command;
-        command = AZStd::string::format("AdjustMotionEvent -motionID %i -eventTrackName \"%s\" -eventNr %i -startTime %f -endTime %f", mMotion->GetID(), eventTrack->GetName(), motionEventNr, startTime, endTime);
+        command = AZStd::string::format("AdjustMotionEvent -motionID %i -eventTrackName \"%s\" -eventNr %zu -startTime %f -endTime %f", mMotion->GetID(), eventTrack->GetName(), motionEventNr, startTime, endTime);
         if (EMStudio::GetCommandManager()->ExecuteCommand(command.c_str(), outResult) == false)
         {
             MCore::LogError(outResult.c_str());
diff --git a/Gems/EMotionFX/Code/Tests/Mocks/EventHandler.h b/Gems/EMotionFX/Code/Tests/Mocks/EventHandler.h
index 80e4a6ff21..1208082e67 100644
--- a/Gems/EMotionFX/Code/Tests/Mocks/EventHandler.h
+++ b/Gems/EMotionFX/Code/Tests/Mocks/EventHandler.h
@@ -58,7 +58,7 @@ namespace EMotionFX
         MOCK_METHOD2(OnStartTransition, void(AnimGraphInstance* animGraphInstance, AnimGraphStateTransition* transition));
         MOCK_METHOD2(OnEndTransition, void(AnimGraphInstance* animGraphInstance, AnimGraphStateTransition* transition));
 
-        MOCK_METHOD3(OnSetVisualManipulatorOffset, void(AnimGraphInstance* animGraphInstance, uint32 paramIndex, const AZ::Vector3& offset));
+        MOCK_METHOD3(OnSetVisualManipulatorOffset, void(AnimGraphInstance* animGraphInstance, size_t paramIndex, const AZ::Vector3& offset));
         MOCK_METHOD4(OnInputPortsChanged, void(AnimGraphNode* node, const AZStd::vector<AZStd::string>& newInputPorts, const AZStd::string& memberName, const AZStd::vector<AZStd::string>& memberValue));
         MOCK_METHOD4(OnOutputPortsChanged, void(AnimGraphNode* node, const AZStd::vector<AZStd::string>& newOutputPorts, const AZStd::string& memberName, const AZStd::vector<AZStd::string>& memberValue));
         MOCK_METHOD3(OnRenamedNode, void(AnimGraph* animGraph, AnimGraphNode* node, const AZStd::string& oldName));