Crash in reflection/mirror

[christopheKohler]

Since 4.12.x we are facing crashs when using scene capture or relfection plane in UE4. We are now running 4.13 and we still have problem with these.

To reproduce the problem : Create a simple scene, add some Planar Reflection Capture, and run. Sometimes can be long before crashing (30 minutes).

When crash occur, it is always inside a "GetModule" and the OSVR module seem to be corrupted. Here is the callstack.

[2016.10.03-12.43.28:330][677]LogWindows:Error: === Critical error: ===
[2016.10.03-12.43.28:330][677]LogWindows:Error:
[2016.10.03-12.43.28:330][677]LogWindows:Error: Fatal error!
[2016.10.03-12.43.28:330][677]LogWindows:Error:
[2016.10.03-12.43.28:330][677]LogWindows:Error: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffff
[2016.10.03-12.43.28:330][677]LogWindows:Error:
[2016.10.03-12.43.28:330][677]LogWindows:Error: UE4Editor-Core.dll!FModuleManager::GetModule() [c:\unrealengine\unrealengine\engine\source\runtime\core\private\modules\modulemanager.cpp:684]
[2016.10.03-12.43.28:330][677]LogWindows:Error: UE4Editor-OSVR.dll
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor-OSVR.dll
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor-OSVR.dll
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor-Engine.dll!ULocalPlayer::GetProjectionData() [c:\unrealengine\unrealengine\engine\source\runtime\engine\private\localplayer.cpp:981]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor-Engine.dll!ULocalPlayer::CalcSceneViewInitOptions() [c:\unrealengine\unrealengine\engine\source\runtime\engine\private\localplayer.cpp:660]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor-Engine.dll!ULocalPlayer::CalcSceneView() [c:\unrealengine\unrealengine\engine\source\runtime\engine\private\localplayer.cpp:721]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor-Engine.dll!UGameViewportClient::Draw() [c:\unrealengine\unrealengine\engine\source\runtime\engine\private\gameviewportclient.cpp:974]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor-Engine.dll!FViewport::Draw() [c:\unrealengine\unrealengine\engine\source\runtime\engine\private\unrealclient.cpp:1163]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor-UnrealEd.dll!UEditorEngine::Tick() [c:\unrealengine\unrealengine\engine\source\editor\unrealed\private\editorengine.cpp:1598]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor-UnrealEd.dll!UUnrealEdEngine::Tick() [c:\unrealengine\unrealengine\engine\source\editor\unrealed\private\unrealedengine.cpp:371]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor.exe!FEngineLoop::Tick() [c:\unrealengine\unrealengine\engine\source\runtime\launch\private\launchengineloop.cpp:2834]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor.exe!GuardedMain() [c:\unrealengine\unrealengine\engine\source\runtime\launch\private\launch.cpp:156]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor.exe!GuardedMainWrapper() [c:\unrealengine\unrealengine\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor.exe!WinMain() [c:\unrealengine\unrealengine\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
[2016.10.03-12.43.28:331][677]LogWindows:Error: UE4Editor.exe!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
[2016.10.03-12.43.28:331][677]LogWindows:Error: KERNEL32.DLL
[2016.10.03-12.43.28:331][677]LogWindows:Error: ntdll.dll
[2016.10.03-12.43.28:331][677]LogWindows:Error: ntdll.dll