Unreal Engine Issues
Unreal Engine Issues
JumpForce replicated ability task not always cleaned up properly
UE - Gameplay - Gameplay Ability System - Jul 19, 2024See [Link Removed] for original report. UAbilityTask_ApplyRootMotionJumpForce has a slightly different flow than other Root Motion Source ability tasks. It is the only one that allows EndTask to b ...
Modifying FSuggestProjectileVelocityParameters::ResponseParam.CollisionResponse modifies FCollisionResponseParams::DefaultResponseParam
UE - Gameplay - Sep 17, 2024FSuggestProjectileVelocityParameters was introduced in 5.4 and has a FCollisionResponseParams member that's initialized as a mutable reference to FCollisionResponseParams::DefaultResponseParam. str ...
Decals are corrupted when VRS is enabled on some console platforms, and possibly PC
UE - Platform - Console - Rendering - Oct 1, 2024Blocky artifacts and flickering are sometimes visible when using VRS and decals. Setting r.VRS.Decals=0 removes the flickering. See Additional Info URL for details. ...
Intermittent Crash in Pose Search during Cook
UE - Anim - Gameplay - Jan 27, 2025User reports that they've been running into an intermittent crash in Pose Search during Cook. Pose Search attempts to index data outside the bounds of an array. Based on the logs, each asset seems t ...
Material Layers Relink Button Missing
UE - Rendering Architecture - Materials - Mar 26, 2025The Relink button is missing (as are the Save Sibling and Save Child buttons) on Material Instances that use Material Attributes Layers in 5.5. ...
Change of rotation axis when switching solver
UE - Simulation - Physics - Apr 17, 2025This alteration was introduced in the 'Found CL' field - and is likely an unintentional side effect of adding SIMD to the solver. There is a repro project attached, open up 'TestMap' and run to see ...
When exporting a level sequence (with its associated level) to USD, the asset paths for the reference are different from 5.5 and older
UE - Editor - Content Pipeline - USD - Jul 21, 2025In 5.6, a referenced asset path looks something like prepend references = @../../../../../Data/USD/Exports/FN-Main/ExportFolder/Assets/Sphere.usda@ instead of prepend references = ...
Textures/Materials morphed when BSP is scaled
UE - LD & Modeling - Modeling Tools - BSP - Mar 17, 2015When you place a texture onto a BSP and resize the BSP, the material/texture is skewed to the size of the BSP rather than staying at the scale it originally was. Work Around: You can resolve this b ...
Editor crashes upon PIE unless tick is disconnected and reconnected
UE - Gameplay - Blueprint - May 14, 2015Project crashes if user presses compile or PIE unless they first disconnect and reconnect event tick within blueprint component BP_BuildStage. Frequency: 4/4 CrashReporter: [Link Removed] ...
Static + Dynamic CSM shadowing causes shadow acne for skeletal meshes on iOS
UE - Platform - Mobile - Jun 7, 2016User reports Static + Dynamic CSM seems to cause horrible shadow acne on skeletal meshes. Believed to be the iOS depth bias issue. ...