I’m using the same method which used Epic’s Action RPG Demo for my game’s async loading screen. Most of the time it works without any issue but some times game crashes while loading. I checked out the logs and here is what i found:
[2021.02.07-10.23.15:655][228]LogWindows: Error: === Critical error: === [2021.02.07-10.23.15:655][228]LogWindows: Error: [2021.02.07-10.23.15:655][228]LogWindows: Error: Assertion failed: OptionalMipsState == EOptionalMipsState::HasOptionalMips [File:D:\Build++UE4\Sync\Engine\Source\Runtime\Engine\Private\Streaming\StreamingTexture.cpp] [Line: 416] [2021.02.07-10.23.15:656][228]LogWindows: Error: [2021.02.07-10.23.15:656][228]LogWindows: Error: [2021.02.07-10.23.15:656][228]LogWindows: Error: [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffcfef63b29 KERNELBASE.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffcbdc76850 UE4Editor-ApplicationCore.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffc82ca62fc UE4Editor-Core.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffc82c351db UE4Editor-Core.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffc7eae192c UE4Editor-Engine.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffc7eafb957 UE4Editor-Engine.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffc7df1d8fc UE4Editor-Engine.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffc7df19c47 UE4Editor-Engine.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffc7df19be4 UE4Editor-Engine.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffc7e0f6806 UE4Editor-Engine.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffcd1a1ab40 UE4Editor-MoviePlayer.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ff784685e75 UE4Editor.exe!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ff784695b3c UE4Editor.exe!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ff784695bba UE4Editor.exe!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ff7846a3dac UE4Editor.exe!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ff7846a5aaa UE4Editor.exe!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffcff447c24 KERNEL32.DLL!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [Callstack] 0x00007ffd0128d4d1 ntdll.dll!UnknownFunction [] [2021.02.07-10.23.15:656][228]LogWindows: Error: [2021.02.07-10.23.15:691][228]LogExit: Executing StaticShutdownAfterError [2021.02.07-10.23.17:449][228]LogWindows: FPlatformMisc::RequestExit(1) [2021.02.07-10.23.17:469][228]Log file closed, 02/07/21 15:53:17
Can’t figure out why is this assertion failing and logs seems to be not providing any help to track the issue. If someone understand the issue please let me know or point me in the right direction.
Thank you for taking time to read this. Cheers!