Unreal Engine Issues
Unreal Engine Issues
GAS: GameplayDebugger crashes when AttributeSet has different rep conditions per attribute
UE - Gameplay - Gameplay Ability System - Jan 10, 2025When using the GameplayDebugger to show GAS debug info, and an AttributeSet has two replicated attributes with different replication conditions, a crash occurs in RegisterReplicatedLifetimeProperty( ...
The DistanceCurveModifier generates Distance Curves with zero values for Root Motion animations
UE - Characters - Animation - Jun 30, 2025The DistanceCurveModifier data modifier generates curves that return zero values only. This issue has been tested on several Animation Sequences with enabled Root Motion and always occurred. ...
LIVE: Multiplying an FQuat*FQuat via pass-by-value crashes editor on open
UE - Foundation - Core - Nov 5, 2014If a function takes in an FQuat value and then multiplies it by an FQuat, the project will build properly but then crash when trying to launch the project in the editor. Example project available b ...
Oculus mirror window goes black when headset removed for any mirroring mode besides 0
UE - Platform - XR - Nov 16, 2016If using any hmd mirroring mode besides 0 on Oculus, when the headset is removed, the mirroring window goes black in a packaged build, or in -game, for example: UE4Editor.exe VrTemplate4x15 MotionCo ...
Setting FActorSpawnParameters::bRemoteOwned causes inconsistent behavior when spawning actors
UE - Gameplay - Sep 13, 2016If FActorSpawnParameters::bRemoteOwned is set to true, calling SpawnActor with this spawn param on begin play has different behavior than calling the SpawnActor elsewhere during runtime. If using n ...
Precomputed AO Masks cannot be used to LERP between Normal Maps
UE - Graphics Features - Sep 18, 2015When using the Precomputed AO Map node to LERP between 2 Normals, only the A input into LERP will render out on the mesh. The Precomputed AO will work fine for Base Color LERPs Example: [Image Re ...
Compile error packaging QAGame with nativization on Mac
UE - Gameplay - Blueprint Runtime - Dec 13, 2016QAGame is failing to compile with Blueprint Nativization turned on ...
Set Array Elem is missing the Item checkbox when connected to an existing array variable
UE - Gameplay - Feb 8, 2017Set Array Elem is missing the Item checkbox when connected to an existing array variable that was created separately. The checkbox is present if the Set Array Elem is created off of the array variab ...
Crash on packaged game. 4.23 will not nativize a class that creates instanced properties inside itself
UE - Gameplay - Oct 1, 2019Description from the user: up to 4.23 properties nativize normally if they are written in C++ with the Instanced specifier. The discerning difference is that that there was no Blueprint Class itsel ...
Regression: FGameplayTag and FGameplayTagContainer pin value modification is not undo/redoable
For nodes with an FGameplayTag or FGameplayTagContainer pin, when changing the tag value (Pin->DefaultValue) and triggering Undo/Redo, the pin modification is not undone. Rather, it undoes the previ ...