The project is running normally in previous version 5.5.0, but after I upgrade the unity to 5.6.1, load the project(upgrade the project yes), it starts to crash. First time I run the project after the upgrade, unity crashes after a couple of minutes of playing in editor mode. Then every time I try to open the project again, unity will crash just after loading the project. see the log: ========== OUTPUTING STACK TRACE ================== 0x0000000140BFE1F3 (Unity) RenderTexture::Create 0x0000000140BFF9C9 (Unity) EnsureRenderTextureIsCreated 0x000000014095D795 (Unity) Camera::SetRenderTargetAndViewport 0x0000000140965C3D (Unity) Camera::SetupRender 0x0000000140968DD8 (Unity) Camera::SetupRender 0x0000000140973DD7 (Unity) Camera::CustomRender 0x0000000140975012 (Unity) Camera::Render 0x0000000140975261 (Unity) Camera::Render 0x00000001409AA9F5 (Unity) ReflectionProbes::RealtimeReflectionProbeCount 0x00000001409C90EB (Unity) RenderManager::RenderOffscreenCameras 0x000000014171B3D7 (Unity) Application::UpdateScene 0x000000014171CAAF (Unity) Application::UpdateSceneIfNeeded 0x000000014172532A (Unity) Application::TickTimer 0x00000001417F0ABC (Unity) CrashCallback 0x00000001417F2704 (Unity) WinMain 0x0000000141AD7444 (Unity) strnlen 0x00007FF888B32774 (KERNEL32) BaseThreadInitThunk 0x00007FF888D80D61 (ntdll) RtlUserThreadStart ========== END OF STACKTRACE =========== And here's the log when the "crash" appears: - starting compile Library/ScriptAssemblies/Assembly-CSharp-firstpass.dll, for buildtarget 5 Issue TrimJob to reduce GI Cache size to maximum 10GB at: 'C:/Users/Jimmy/AppData/LocalLow/Unity/Caches/GiCache' Setting up 4 worker threads for Enlighten. Thread -> id: 2a40 -> priority: 1 Thread -> id: 3510 -> priority: 1 Thread -> id: 250c -> priority: 1 Thread -> id: 4bec -> priority: 1 Crash!!! I post the question in "answer forum" but I am not sure it is the right place, for the previous crash questions are not generally answered So I figure it's better to post the question here Thanks for any help!