Summary
Attempting to open UMG widgets which use Verse Events (with no parameters) will crash the engine completely and prevent cook errors.
All UMG widget blueprints have “[Compiler] Internal error: An event is invalid.”
Have attempt to verfy files and this has now happened multiple times with UMG widgets that was originally made pre 40.2.
Hours of work completely borked at the moment. Happens to every UMG widget that an event variable made prior 40.2 is bound to a OnClicked event.
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
UI/Tools
Steps to Reproduce
Open UMG widget made in 40.10. Crashes editor
Expected Result
Events work as expected, the ability to open up a UMG widget in editor.
Observed Result
Unable to validate and editor crashes 100% repo rate. Looks like a memory access crash
LoginId:9a3b3db34799942d62506eb90db2224e
EpicAccountId:3a4cf0801ec348aa9b4483f0a78d8c78
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000168
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Engine_Win64_Shipping
user32
user32
UnrealEditorFortnite_Engine_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
kernel32
ntdll
Platform(s)
PC
Video