Issues with crashing on shutdown.

General Issues and Bug Reporting (Unreal Engine)
, , ,
1

Summary

Crashing after closing correctly.

What Type of Bug are you experiencing?

Editor

Steps to Reproduce

  1. After saving the project and getting the *All Saved, I click exit.
  2. The app appears to shut down normally.
  3. 5 seconds later, the crash screen comes up.

Expected Result

I am unclear as to why this continues to crash.

Observed Result

Step 4. I get this message:
Fatal error!

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x00007ffb00007383

0x00007ffb25a08b0d python311.dll!UnknownFunction
0x00007ffb2593cb2a python311.dll!UnknownFunction
0x00007ffb2593b878 python311.dll!UnknownFunction
0x00007ffb2593b7b3 python311.dll!UnknownFunction
0x00007ffb259fb219 python311.dll!UnknownFunction
0x0000020fa29e11e4 UnrealEditor-PythonScriptPlugin.dll!UnknownFunction
0x0000020fa29b0a4e UnrealEditor-PythonScriptPlugin.dll!UnknownFunction
0x00007ff722ec4a71 UnrealEditor.exe!UnknownFunction
0x00007ff722ec3b9e UnrealEditor.exe!UnknownFunction
0x00007ff722ec93fd UnrealEditor.exe!UnknownFunction
0x00007ff722ecc557 UnrealEditor.exe!UnknownFunction
0x00007ff722ecc5ba UnrealEditor.exe!UnknownFunction
0x00007ff722ed1256 UnrealEditor.exe!UnknownFunction
0x00007ff722ee5c74 UnrealEditor.exe!UnknownFunction
0x00007ff722ee902a UnrealEditor.exe!UnknownFunction
0x00007ffc9b5bcdf7 KERNEL32.DLL!UnknownFunction

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x00007ffb00007383

python311
python311
python311
python311
python311
UnrealEditor_PythonScriptPlugin
UnrealEditor_PythonScriptPlugin
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

Affects Versions

5.8

Platform(s)

Windows

Upload an image

Screenshot 2026-09-24 212547.png
Screenshot 2026-09-24 212547.png745×597 36 KB
Screenshot 2026-09-24 212614.png
Screenshot 2026-09-24 212614.png745×599 31.3 KB

For crash reports, include your callstack

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x00007ffb00007383

0x00007ffb25a08b0d python311.dll!UnknownFunction
0x00007ffb2593cb2a python311.dll!UnknownFunction
0x00007ffb2593b878 python311.dll!UnknownFunction
0x00007ffb2593b7b3 python311.dll!UnknownFunction
0x00007ffb259fb219 python311.dll!UnknownFunction
0x0000020fa29e11e4 UnrealEditor-PythonScriptPlugin.dll!UnknownFunction
0x0000020fa29b0a4e UnrealEditor-PythonScriptPlugin.dll!UnknownFunction
0x00007ff722ec4a71 UnrealEditor.exe!UnknownFunction
0x00007ff722ec3b9e UnrealEditor.exe!UnknownFunction
0x00007ff722ec93fd UnrealEditor.exe!UnknownFunction
0x00007ff722ecc557 UnrealEditor.exe!UnknownFunction
0x00007ff722ecc5ba UnrealEditor.exe!UnknownFunction
0x00007ff722ed1256 UnrealEditor.exe!UnknownFunction
0x00007ff722ee5c74 UnrealEditor.exe!UnknownFunction
0x00007ff722ee902a UnrealEditor.exe!UnknownFunction
0x00007ffc9b5bcdf7 KERNEL32.DLL!UnknownFunction

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x00007ffb00007383

python311
python311
python311
python311
python311
UnrealEditor_PythonScriptPlugin
UnrealEditor_PythonScriptPlugin
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll