diff --git a/Gems/LyShine/Code/Source/LyShinePass.cpp b/Gems/LyShine/Code/Source/LyShinePass.cpp
index fbf7f34e14..8245294696 100644
--- a/Gems/LyShine/Code/Source/LyShinePass.cpp
+++ b/Gems/LyShine/Code/Source/LyShinePass.cpp
@@ -135,7 +135,7 @@ namespace LyShine
         passData->m_pipelineViewTag = AZ::Name("MainCamera");
         auto size = attachmentImage->GetRHIImage()->GetDescriptor().m_size;
         passData->m_overrideScissor = AZ::RHI::Scissor(0, 0, size.m_width, size.m_height);
-        passData->m_overrideViewport = AZ::RHI::Viewport(0, size.m_width, 0, size.m_height);
+        passData->m_overrideViewport = AZ::RHI::Viewport(0, static_cast<float>(size.m_width), 0, static_cast<float>(size.m_height));
         passTemplate->m_passData = AZStd::move(passData);
         // Create a pass descriptor for the new child pass
         AZ::RPI::PassDescriptor childDesc;
diff --git a/Gems/LyShine/Code/Source/RenderGraph.cpp b/Gems/LyShine/Code/Source/RenderGraph.cpp
index 85f9c7deb5..51f62fc7ad 100644
--- a/Gems/LyShine/Code/Source/RenderGraph.cpp
+++ b/Gems/LyShine/Code/Source/RenderGraph.cpp
@@ -881,8 +881,8 @@ namespace LyShine
             {
                 for (int i = 0; i < primitive->m_numVertices; ++i)
                 {
-                    primitive->m_vertices[i].texIndex = texUnit0;
-                    primitive->m_vertices[i].texIndex2 = texUnit1;
+                    primitive->m_vertices[i].texIndex = aznumeric_cast<uint8>(texUnit0);
+                    primitive->m_vertices[i].texIndex2 = aznumeric_cast<uint8>(texUnit1);
                 }
             }
 
diff --git a/Gems/LyShine/Code/Source/UiFaderComponent.cpp b/Gems/LyShine/Code/Source/UiFaderComponent.cpp
index f195689a43..acdf462df7 100644
--- a/Gems/LyShine/Code/Source/UiFaderComponent.cpp
+++ b/Gems/LyShine/Code/Source/UiFaderComponent.cpp
@@ -463,7 +463,7 @@ void UiFaderComponent::CreateOrResizeRenderTarget(const AZ::Vector2& pixelAligne
     // Create a render target that this element and its children will be rendered to
     AZ::EntityId canvasEntityId;
     EBUS_EVENT_ID_RESULT(canvasEntityId, GetEntityId(), UiElementBus, GetCanvasEntityId);
-    AZ::RHI::Size imageSize(renderTargetSize.GetX(), renderTargetSize.GetY(), 1);
+    AZ::RHI::Size imageSize(aznumeric_cast<uint32_t>(renderTargetSize.GetX()), aznumeric_cast<uint32_t>(renderTargetSize.GetY()), 1);
     EBUS_EVENT_ID_RESULT(m_attachmentImageId, canvasEntityId, LyShine::RenderToTextureRequestBus, UseRenderTarget, AZ::Name(m_renderTargetName.c_str()), imageSize);
     if (m_attachmentImageId.IsEmpty())
     {
diff --git a/Gems/LyShine/Code/Source/UiMaskComponent.cpp b/Gems/LyShine/Code/Source/UiMaskComponent.cpp
index 2c1763e4ec..869529560f 100644
--- a/Gems/LyShine/Code/Source/UiMaskComponent.cpp
+++ b/Gems/LyShine/Code/Source/UiMaskComponent.cpp
@@ -564,7 +564,7 @@ void UiMaskComponent::CreateOrResizeRenderTarget(const AZ::Vector2& pixelAligned
     // Create a render target that this element and its children will be rendered to
     AZ::EntityId canvasEntityId;
     EBUS_EVENT_ID_RESULT(canvasEntityId, GetEntityId(), UiElementBus, GetCanvasEntityId);
-    AZ::RHI::Size imageSize(renderTargetSize.GetX(), renderTargetSize.GetY(), 1);
+    AZ::RHI::Size imageSize(aznumeric_cast<uint32_t>(renderTargetSize.GetX()), aznumeric_cast<uint32_t>(renderTargetSize.GetY()), 1);
     EBUS_EVENT_ID_RESULT(m_contentAttachmentImageId, canvasEntityId, LyShine::RenderToTextureRequestBus, UseRenderTarget, AZ::Name(m_renderTargetName.c_str()), imageSize);
     if (m_contentAttachmentImageId.IsEmpty())
     {
@@ -762,7 +762,7 @@ void UiMaskComponent::RenderUsingGradientMask(LyShine::IRenderGraph* renderGraph
             {
                 // go through all the cached vertices and update the alpha values
                 UCol desiredPackedColor = m_cachedPrimitive.m_vertices[0].color;
-                desiredPackedColor.a = desiredPackedAlpha;
+                desiredPackedColor.a = aznumeric_cast<uint8>(desiredPackedAlpha);
                 for (int i = 0; i < m_cachedPrimitive.m_numVertices; ++i)
                 {
                     m_cachedPrimitive.m_vertices[i].color = desiredPackedColor;