Crashing when toggling maps containing Color Correct Regions

When maps with Color Correct Regions are streamed into another map have their visibility toggled during runtime, it will cause a memory access violation and crash the editor.

1. Open the example project, it should be on the "Main" map (see addl info URL)
2. Press play.
3. Press key "e" to toggle the visibility of the levels (a level blueprint is set here to add the toggle functionality).
4. The editor crashes with a memory access violation.

LoginId:4c96169f4ad37309066a0e8790d4b26f
EpicAccountId:f18e8066eb174151852716044be1bd57

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x000000000000016d

>    UnrealEditor-Engine.dll!UWorld::HasBegunPlay() Line 6120    C++
     UnrealEditor-ColorCorrectRegions.dll!?CreateRenderStateForCCActor@?A0x27689d97@@YA?AV?$TSharedPtr@UFColorCorrectRenderProxy@@$00@@U?$TWeakObjectPtr@VAColorCorrectRegion@@UFWeakObjectPtr@@@@@Z(TWeakObjectPtr<AColorCorrectRegion,FWeakObjectPtr> InActorWeakPtr) Line 72    C++
     UnrealEditor-ColorCorrectRegions.dll!UColorCorrectRegionsSubsystem::TransferStates() Line 272    C++
     UnrealEditor-Renderer.dll!FRendererModule::BeginRenderingViewFamilies(FCanvas * Canvas, TArrayView<FSceneViewFamily * const,int> ViewFamilies) Line 5636    C++
     UnrealEditor-Renderer.dll!FRendererModule::BeginRenderingViewFamily(FCanvas * Canvas, FSceneViewFamily * ViewFamily) Line 5536    C++
     UnrealEditor-Engine.dll!UGameViewportClient::Draw(FViewport * InViewport, FCanvas * SceneCanvas) Line 1853    C++
     UnrealEditor-DisplayCluster.dll!UDisplayClusterViewportClient::Draw(FViewport * InViewport, FCanvas * SceneCanvas) Line 891    C++
     UnrealEditor-Engine.dll!FViewport::Draw(bool bShouldPresent) Line 1807    C++
     UnrealEditor-UnrealEd.dll!UEditorEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 2406    C++
     UnrealEditor-UnrealEd.dll!UUnrealEdEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 550    C++
     UnrealEditor-DisplayClusterEditor.dll!UDisplayClusterEditorEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 191    C++
     UnrealEditor.exe!FEngineLoop::Tick() Line 5874    C++
     [Inline Frame] UnrealEditor.exe!EngineTick() Line 69    C++
     UnrealEditor.exe!GuardedMain(const wchar_t * CmdLine) Line 196    C++
     UnrealEditor.exe!GuardedMainWrapper(const wchar_t * CmdLine) Line 123    C++
     UnrealEditor.exe!LaunchWindowsStartup(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow, const wchar_t * CmdLine) Line 277    C++
     UnrealEditor.exe!WinMain(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * pCmdLine, int nCmdShow) Line 317    C++