Potential fix for #207

Author: Moddingear

Source/RuntimeMeshComponent/Private/RuntimeMeshComponentProxy.h

@@ -23,7 +23,7 @@ class FRuntimeMeshComponentSceneProxy : public FPrimitiveSceneProxy
 	// Reference all the in-use buffers so that as long as this proxy is around these buffers will be too. 
 	// This is meant only for statically drawn sections. Dynamically drawn sections can update safely in place.
 	// Static sections get new buffers on each update.
-	TArray<TSharedPtr<FRuntimeMeshSectionProxyBuffers>> InUseBuffers;
+	TArray<TSharedPtr<FRuntimeMeshSectionProxyBuffers, ESPMode::ThreadSafe>> InUseBuffers;
 
 	// Reference to the body setup for rendering.
 	UBodySetup* BodySetup;

Source/RuntimeMeshComponent/Private/RuntimeMeshProxy.cpp

@@ -509,7 +509,7 @@ void FRuntimeMeshProxy::ApplyMeshToSection(int32 LODIndex, int32 SectionId, FRun
 
 	if (bShouldRecreateBuffers)
 	{
-		Section.Buffers = MakeShared<FRuntimeMeshSectionProxyBuffers>(Section.UpdateFrequency == ERuntimeMeshUpdateFrequency::Frequent, false);
+		Section.Buffers = MakeShared<FRuntimeMeshSectionProxyBuffers, ESPMode::ThreadSafe>(Section.UpdateFrequency == ERuntimeMeshUpdateFrequency::Frequent, false);
 		Section.Buffers->InitFromRHIReferences(MeshData, Batcher);
 	}
 	else

Source/RuntimeMeshComponent/Private/RuntimeMeshSectionProxy.h

@@ -23,7 +23,7 @@ struct FRuntimeMeshSectionNullBufferElement
 };
 
 
-struct FRuntimeMeshSectionProxyBuffers : public TSharedFromThis<FRuntimeMeshSectionProxyBuffers>
+struct FRuntimeMeshSectionProxyBuffers : public TSharedFromThis<FRuntimeMeshSectionProxyBuffers, ESPMode::ThreadSafe>
 {
 	/** Vertex factory for this section */
 	FRuntimeMeshVertexFactory VertexFactory;
@@ -112,7 +112,7 @@ struct FRuntimeMeshSectionProxyBuffers : public TSharedFromThis<FRuntimeMeshSect
 
 struct FRuntimeMeshSectionProxy
 {
-	TSharedPtr<FRuntimeMeshSectionProxyBuffers> Buffers;
+	TSharedPtr<FRuntimeMeshSectionProxyBuffers, ESPMode::ThreadSafe> Buffers;
 
 	uint32 FirstIndex;
 	uint32 NumTriangles;