Unreal Engine Issues
Unreal Engine Issues
SBasePoseViewport should use ExtendedBounds, not ImportedBounds
UE - Anim - Rigging - Jun 16, 2020In accordance with CL-9139422 of [Link Removed], the SkeletalMesh ImportedBounds does not have an Extend operation. However, SBasePoseViewport, the UI for retagettes, continues to use ImportedBounds ...
'GetClassDefaults' Can Cause Blueprint To Become Modified When Unrelated Blueprint Is Compiled
UE - Framework - Blueprint - Sep 22, 2023The stems from a really old change (CL 2948683) to fix [Link Removed] Closed . Compiling ObjectA will call RefreshExternalB ...
UHapticFeedbackEffect_SoundWave Initialize does not populate Raw Data in the HapticsBuffer
UE - Platform - XR - Jul 19, 2024From the UDN: > Open HapticsFeedbackEffect.cpp and naivgate ~ line 150; note HapticBuffer has length populated but never write the actual buffer data. LikeReplySelect as Best Seems like a simple f ...
Bundled compute PSO compilation stalling tender thread
UE - Rendering - RHI - Feb 13, 2025A licensee has pointed out a potential bug they found related task graph synchronization and when compiling compute PSOs: [Link Removed]. From the screenshot they sent over, it seems that a task gra ...
UAT not considering remote root
Tech - BuildOps - Tools - Apr 2, 2025It seems like WriteFileList (TempStorage.cs) is not respecting the enginePath as set from horde context. _localDir in TempStorage.cs seems to be based off of the RootDir (details here). Proposed ...
GAS: GameplayAttribute picker incorrectly also lists AttributeSets' non-attribute properties
UE - Gameplay - Gameplay Ability System - Aug 21, 2025Context: FGameplayAttribute's details customization lets designers pick any attribute property from any UAttributeSet class. Problem: This currently displays all properties of UAttributeSet class ...
Changing MaterialQualityLevel causes a crash due to a ShaderMap mismatch in UniformExpressionCache
UE - Rendering - Architecture - Materials - Nov 26, 2025A crash may occur when changing the MaterialQualitylevel via Scalability due to a race condition. The issue occurs because in ScalabilityCVarsSinkCallback(), when it creates the FGlobalComponentRec ...
Bitfield Bools in a struct and AnimBlueprint transitions not working together
UE - Gameplay - Blueprint - Apr 12, 2016USTRUCT(BlueprintType) struct FTestStruct { GENERATED_USTRUCT_BODY() UPROPERTY(BlueprintReadWrite) uint32 ValueC : 1 ; UPROPERTY(BlueprintReadWrite) uint32 ValueD : 1 ; }; A ...
Access violation crash on startup after converting project
UE - Graphics Features - Jun 1, 2016Access violation crash on startup after converting project User Description: We were using 4.10.4, and are trying to upgrade to 4.11.2. The project will convert and open fine the very first try, b ...
'Use Translucency Vertex Fog' does not work on Metal
UE - Graphics Features - Nov 15, 2016'Use Translucency Vertex Fog' does not work on Metal despite the following release notes: According to 4.13 Releases Notes:[Link Removed] "New: Shader Model 5 Rendering for Mac Mac Metal now has i ...