UnhandledException: EXception_Access_Violation error running with the Gameplay Ability System

Development Programming & Scripting
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1

Every time I try to run my game or try to open up my folder that contains my BP_ThirdPersonCharacter blueprint, Unreal Crashes and spits out the error below. I’ve been using GAS and I wonder if there’s some sort of pointer I forgot to set up? Has anyone here run into this error before?

The last thing I did before this crash started to appear was create two GameplayEffects that checked if the player is moving or not. I’d show my blueprints, but unfortunately, I can’t even open up my BP_ThirdPersonCharacter anymore.

Any information would be appreciated, thanks!

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000000000d0

UnrealEditor_GameplayAbilities
UnrealEditor_GameplayAbilities
UnrealEditor_GameplayAbilities
UnrealEditor_GameplayAbilities
UnrealEditor_GameplayAbilities
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

2

Update: I’ve found the cause of the crash. Still can’t prevent the crash though.
So the following code is in my BP_ThirdPersonCharacter:

Screenshot 2024-08-07 123719
Screenshot 2024-08-07 1237191065×578 83.4 KB

If I try and connect the ApplyGameplayEffect to self node from the IsStill Custom Event and run it through to the Do Once node, it causes a crash. I know the IsStill Gameplay Effect is not the cause of the error, since the Gameplay Effect still runs if I apply it to the player elsewhere.

Any ideas on how this could happen? Thanks.