Unreal Engine Issues
Unreal Engine Issues
Lyra animation stutter when character moves from side to side
UE - Content - Sample - Nov 21, 2022When moving in Lyra side to side using the B_Hero_ShooterMannequin as the player character, the animation will noticeably stutter whenever you change the direction of the movement. I repro'd this 3/ ...
Transform variable values in a Control Rig cannot be copied or pasted onto
UE - Anim - Rigging - Control Rig - Nov 29, 2022When trying to copy/paste values from anything to a Transform variable's values, it will not happen. Additionally, you cannot copy/paste anything from a Transform variable. I repro'd this 3/3 times. ...
CommonUI uses cached geometry that might be zero sized for gamepad focus
UE - Editor - UI Systems - Jan 11, 2023Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. Workaround for issue is to have a text box in the vertical box before any buttons; fir ...
BP multi-level inheritance does not correctly inherit 'Static' mobility
UE - Framework - Blueprint - Sep 8, 2022User reported an issue of a mesh not being visible when a project has multi-level blueprint inheritance. After reproing, I believe the root cause is DefaultSceneRoot of the grandchild BP class not c ...
Syncing issue when stopping and blending out a non-looping montage to an anim graph
UE - Anim - Gameplay - Feb 7, 2023When syncing from a non-repeating montage that is blending out to an anim graph, the anim montage is marked as a follower due to having its PrevMaker as an AnimBoundary(-1), furthermore in this case ...
Blueprint spawned by Visual Dataprep does not run construction script
UE - Editor - Content Pipeline - Visual Dataprep - Mar 9, 2023Notice that the actors created through dataprep does not exectute the construction script while the actor spawnd directly in the scene does. Reported in the UDN [Link Removed] ...
Parameters show up in material instances even if they're not supposed to be exposed
UE - Rendering Architecture - Materials - Feb 28, 2018In this case, I've added inputs to a material function. That material function input uses a parameter as it's default value. [image: Inline image 1] When referenced in the shader[image: Inline ima ...
Cloth painting - Camera movements are broken once leaving the painting tool.
UE - Simulation - Physics - Character - Aug 29, 2023Possibly a regression, but I could reproduce this issue as far as 5.2, so unsure when it started. The issue seems to be that the cloth painting tool lock the camera movements during painting, but d ...
Error when exporting large model to FBX binary
RC - Editor - Sep 16, 2024It's happening when exported models have over 150 million triangles. Project: [Link Removed] Note: Reported in the Elite Slack channel. ...
Automated tests DynamicSubobjectInstancing and NonNativeInstancedSubobjects (CoreUObject group) fail
UE - Framework - Dec 15, 2025The DynamicSubobjectInstancing and NonNativeInstancedSubobjects automation tests fail. ...