Unreal Engine Issues
Unreal Engine Issues
Virtual Texture Data GetNumMips reports one fewer mip than expected
UE - Graphics Features - Feb 27, 2025FVirtualTextureBuiltData::GetNumMips() can return 1 fewer mip than it should due to a potential clamping issue at the end of FVirtualTextureBuilderDerivedInfo::InitializeFromBuildSettings() where it ...
Nanite Instanced Static Meshes lost selection outlines in UE5.5
UE - Graphics Features - Nanite - Mar 6, 2025Nanite ISMs lost selection outlines in UE5.5 Actors having an ISM component which uses a static mesh with nanite do not get a selection outline when selected in the editor. Having Nanite is essentia ...
Crash when not saving level after using MovieRenderQueue for that level
UE - Editor - Content Pipeline - USD - Feb 8, 2022Crash when not saving level after using MovieRenderQueue for that level Repro rate 3/3 Regression Yes, issue is not reproduced on //UE5/Release-5.0-EarlyAccess at CL 16682836 from LauncherFatal er ...
[Stall] AudioMixerSourceManager::FlushCommandQueue when opening editor for asset
UE - Audio - Apr 7, 2022Live issue. Stall occurring for some users in the 5.0 Release. Currently hit 577 times by 500 users as of 2022-04-29 No specific project occurring on ...
Material editor crash in 5.0.2
UE - Rendering - Architecture - Materials - Sep 2, 2022Subobject components do not have undo functionality within the level
Tools - Jan 4, 2021When moving these components around in the world editor, the transform gizmo will move with the undo, but the actual component will not. I could not repro this behavior with non-native component ...
Override MacroUV in Required Module breaks MacroUVs based on World Position of Emitter
UE - Graphics Features - Mar 3, 2016MacroUVs are breaking when using the Override System MacroUV option in the Required Module. Using System MacroUVs:[Image Removed] Using Override System MacroUVs:[Image Removed] Also Tested and Re ...
TraceHitInfo not returning correct PhysMat when Changed at Runtime via MID
UE - Simulation - Physics - Jan 11, 2016Line Traces are not correctly returning the Physical Material Info when that information is changed at runtime via a Override Physical Material or a Set Physical Material via a Dynamic Material Inst ...
Editor crashes if reopened and a row is selected after moving datatablerow editor window in a csv data table
Tools - Apr 24, 2015If a user moves the row editor window in a csv datatable, then saves, closes, and reopens the editor, the editor will crash if the user then attempts to select a datatable row in the csv datatable w ...
Tiled Landscapes imported with inverted Y axis rotation in World Browser
UE - LD & Modeling - Terrain - Landscape - Feb 23, 2015When importing tiled landscapes into the world browser, the landscape tiles appear with inverted Y axis rotations. ...