Engine Crash while placing EQS testing pawn

Development Programming & Scripting
1

I was replicating the script done on UnrealEngine Advanced AI tutorial series.

After moving EQS Pawn the engine is crashing.

Fatal error!

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION 0x48d5f590

0x0000000048D5F590 UnknownFunction []
0x00000000D02E63D0 UE4Editor-AIModule.dll!UnknownFunction []
0x00000000D02E72B6 UE4Editor-AIModule.dll!UnknownFunction []
0x00000000D03619AF UE4Editor-AIModule.dll!UnknownFunction []
0x00000000D02C7225 UE4Editor-AIModule.dll!UnknownFunction []
0x00000000D02DEDFD UE4Editor-AIModule.dll!UnknownFunction []
0x00000000D02DFDA8 UE4Editor-AIModule.dll!UnknownFunction []
0x00000000C08ED5EA UE4Editor-EnvironmentQueryEditor.dll!UnknownFunction []
0x00000000C08E947E UE4Editor-EnvironmentQueryEditor.dll!UnknownFunction []
0x00000000C0873421 UE4Editor-EnvironmentQueryEditor.dll!UnknownFunction []
0x00000000C0873A4C UE4Editor-EnvironmentQueryEditor.dll!UnknownFunction []
0x00000000C08C1E20 UE4Editor-EnvironmentQueryEditor.dll!UnknownFunction []
0x00000000D2A56667 UE4Editor-Slate.dll!UnknownFunction []
0x00000000D2AA4E14 UE4Editor-Slate.dll!UnknownFunction []
0x00000000D2A9DDB8 UE4Editor-Slate.dll!UnknownFunction []
0x00000000D2A9FB8F UE4Editor-Slate.dll!UnknownFunction []
0x00000000D2A9F0AA UE4Editor-Slate.dll!UnknownFunction []
0x00000000D2A9FB8F UE4Editor-Slate.dll!UnknownFunction []
0x00000000D2A9EDFD UE4Editor-Slate.dll!UnknownFunction []
0x00000000D2A9DA67 UE4Editor-Slate.dll!UnknownFunction []
0x00000000D2A9F789 UE4Editor-Slate.dll!UnknownFunction []
0x00000000D1D18AC9 UE4Editor-UnrealEd.dll!UnknownFunction []
0x00000000D1D20DC1 UE4Editor-UnrealEd.dll!UnknownFunction []
0x00000000D1CE1DAB UE4Editor-UnrealEd.dll!UnknownFunction []
0x00000000D1CE261E UE4Editor-UnrealEd.dll!UnknownFunction []
0x00000000C08D0C72 UE4Editor-EnvironmentQueryEditor.dll!UnknownFunction []
0x00000000C08B3D41 UE4Editor-EnvironmentQueryEditor.dll!UnknownFunction []
0x00000000C08DE70F UE4Editor-EnvironmentQueryEditor.dll!UnknownFunction []
0x00000000D1D0585D UE4Editor-UnrealEd.dll!UnknownFunction []
0x00000000C08AA4C5 UE4Editor-EnvironmentQueryEditor.dll!UnknownFunction []
0x00000000BD516A18 UE4Editor-ContentBrowser.dll!UnknownFunction []
0x00000000BD4C86E7 UE4Editor-ContentBrowser.dll!UnknownFunction []
0x00000000BD4CFF77 UE4Editor-ContentBrowser.dll!UnknownFunction []
0x00000000BD520FA9 UE4Editor-ContentBrowser.dll!UnknownFunction []
0x00000000BD4C6C31 UE4Editor-ContentBrowser.dll!UnknownFunction []
0x00000000BD4CED7F UE4Editor-ContentBrowser.dll!UnknownFunction []
0x00000000BD4CCA88 UE4Editor-ContentBrowser.dll!UnknownFunction []
0x00000000BD52DB90 UE4Editor-ContentBrowser.dll!UnknownFunction []
0x00000000BD52120A UE4Editor-ContentBrowser.dll!UnknownFunction []
0x00000000D2957ADE UE4Editor-Slate.dll!UnknownFunction []
0x00000000D2927CEE UE4Editor-Slate.dll!UnknownFunction []
0x00000000D29C0B84 UE4Editor-Slate.dll!UnknownFunction []
0x00000000D29AA492 UE4Editor-Slate.dll!UnknownFunction []
0x00000000D299CEB3 UE4Editor-Slate.dll!UnknownFunction []
0x00000000F080E4F9 UE4Editor-ApplicationCore.dll!UnknownFunction []
0x00000000F0801A48 UE4Editor-ApplicationCore.dll!UnknownFunction []
0x00000000F08103EC UE4Editor-ApplicationCore.dll!UnknownFunction []
0x00000000F07FD5A9 UE4Editor-ApplicationCore.dll!UnknownFunction []
0x0000000005E3B85D USER32.dll!UnknownFunction []
0x0000000005E3B1EF USER32.dll!UnknownFunction []
0x00000000F0811516 UE4Editor-ApplicationCore.dll!UnknownFunction []
0x000000001AFF50C8 UE4Editor.exe!UnknownFunction []
0x000000001B005430 UE4Editor.exe!UnknownFunction []
0x000000001B0054AA UE4Editor.exe!UnknownFunction []
0x000000001B012379 UE4Editor.exe!UnknownFunction []
0x000000001B013D57 UE4Editor.exe!UnknownFunction []
0x00000000054C1FE4 KERNEL32.DLL!UnknownFunction []
0x000000000613EF91 ntdll.dll!UnknownFunction []
0x000000000613EF91 ntdll.dll!UnknownFunction []

EDIT:
The issue related to crashing is related to the Env Query Context blueprint class. The problem occurred due to the return of nullptr due to some mistake I made.

2

Hey there, that call stack doesn’t help much, maybe if you install the debug symbols and try it again it will tell the functions he used.

3

Thanks for help, The issue is solved

The issue related to crashing is related to the Env Query Context blueprint class. The problem occurred due to the return of nullptr due to some mistake I made.

4

Then promote your answer and mark is as correct.