Unreal Engine Issues
Unreal Engine Issues
Bounds location of apex destructible mesh will not be updated when added to sequencer directly from content browser
UE - Simulation - Physics - Destruction - Apr 22, 2020Destructible mesh's location will not be updated when added to sequencer directly from content browser, unless two different locations are keyed on the transform track of the mesh. We found the bug ...
Can't update position with SetPositionInViewport when enable global invalidation
UE - Editor - UI Systems - Jul 22, 2020When GlobalInvalidation is enabled, do not update to the position set by SetPositionInViewport. It works fine when GlobalInvalidation is disabled. ...
Using High Resolution Screenshot while the viewport is in Full Screen causes massive performance issues after the screenshot is successfully taken until the Editor is restarted
UE - Graphics Features - Jan 6, 2022This is a regression. Maybe Binary only if it hasn't already been fixed. Tested in:StreamCLTypeResults//UE5/Main18386535PerforcePerformance is normal after screenshot//UE5/Main18218925Perforce Per ...
Sky Lights don't effect Translucent materials
UE - Rendering Architecture - Materials - Nov 21, 2022Regression: Tested in UE5/Release-5.0, this issue does not occur so it is a regression Appears to be an issue with Lumen and Skylights with Cubemaps. Directional lights, point lights, etc. all work ...
Moving a static mesh placed across world partition grids does not properly move the foliage instance on it
UE - World Creation - Worldbuilding Tools - Foliage - Apr 18, 2023[MetaSounds][Wave Player] - 5.1 Wave Player channel output maps differently for Vorbis than other codecs
UE - Audio - MetaSounds - Aug 16, 2023The channel output for 5.1 Waveplayer on MetaSounds is different when Platform Default (Vorbis) codec is chosen on Windows Platform Default - L, C, R, LS, RS, LFEBink, PCM, ADPCM - L, R, C, LFE, LS ...
A corrupted Twinmotion file is created when there is not enough space on disk
TM - Core - Nov 8, 2024Nanite TwoSidedSign is backwards
UE - Graphics Features - Nanite - Apr 10, 2025The value of MaterialExpressionTwoSidedSign is flipped when calculating the Opacity Mask for Nanite meshes. This seems to be a regression in 5.5. ...
Incorrect UV coordinates when visualizing mesh painting texutre on Nanite splines
UE - Graphics Features - Jun 30, 2025The UV coordinates for visualizing the mesh painting texture on Nanite spline meshes are not working correctly. This runs the code in the NANITE_VISUALIZE_MESH_PAINT_TEXTURE section in NaniteVisuali ...
Replication default setting of child blueprint resets if parent is compiled
UE - Gameplay - Blueprint - Jul 20, 2015The setting for Replication on a Blueprint variable resets to None of the Blueprint's parent BP is compiled. ...