UE5.1 keeping crash after compiling

Development Programming & Scripting C++
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1

Hey guys. Today I find that EVERY time after compiling, UE5.1 will crash. All of my three projects created before meet this problem. And when I create a new project, it seems work propertly. I tried live coding, UnrealBuildTool.exe and the recompile button in Editor, all these methods keeping crash.
Luckily, the compile result is right and when I reopen the Editor, the last compile result works.
I’m confused because even yesterday, they all worked correctly. Does anyone get the same problem?

The track is below:
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000000

UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_UnrealEd
UnrealEditor_HotReload
UnrealEditor_HotReload
UnrealEditor_HotReload
UnrealEditor_HotReload
UnrealEditor_HotReload
UnrealEditor_HotReload
UnrealEditor_Core
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

2

It’s hard to tell, but perhaps you could try tracking down your last changes to your code before the issues started and remove/disable that portion and see if it clears it up and go from there. “Divide and conquer”. I’ve run across this a couple times.

3

well, i have revert my code to several days before and it donot work. Thou good point, I will keep trying

4

I found if I inherit ALevelInstance, it will crash. lol