Summary
Using the Stat Creator device with a custom widget blueprint in UEFN causes Fortnite to crash when attempting to build Verse code while the game is running. Restarting both the UEFN editor and the Epic Games Launcher is required to run the game again.
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Stability
Steps to Reproduce
- Open UEFN and load your project.
- Add a Stat Creator to the scene.
- Assign a custom widget blueprint to the Stat Creator.
- Launch session and start game.
- While the game is running, try to build Verse code.
Expected Result
Verse code should build successfully or provide a warning if not allowed during play mode, without crashing the editor or the game.
Observed Result
Fortnite crashes immediately when attempting to build Verse code. The crash prevents the game from launching again until both UEFN and the Epic Games Launcher are fully closed and restarted.
Platform(s)
windows
Additional Notes
This crash appears to be triggered specifically when a custom widget blueprint is used with the Stat Creator. Preventing build actions during play or handling this case more gracefully could avoid the crash.
Error message:
Fatal error!
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000050
0x00007ff7847bff23 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff7847bff77 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff78489a33e FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff785e66ad1 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff78645de9e FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff7846824f1 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff788e53c9e FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff784629193 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff784689af7 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff7846a7d09 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff7846a79c9 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff784e00520 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff78742fa0b FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff784dbeeff FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff785df8d91 FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff785df8aaf FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007ff785df890e FortniteClient-Win64-Shipping.exe!UnknownFunction
0x00007fff0b14e8d7 KERNEL32.DLL!UnknownFunction
Crash in runnable thread Foreground Worker #0