Unreal Engine Issues
Unreal Engine Issues
Compiling any material in UE 5.5.1 without ShaderCompiler JobCache results in a crash
UE - Rendering Architecture - Shaders - Jan 15, 2025Compiling any material with r.ShaderCompiler.JobCache=0 causes ShaderCompileWorker to crash. Reproduction steps cause a crash during Editor startup, but this bug may affect other scenarios where mat ...
Editor.Plugins.Tools.Modeling.EditorMode.ExtrudePolygons.* test cases fail in headless mode due to stylus error log.
UE - Graphics Tools - Modeling Tools - Jan 15, 2025Hello! In UE 5.5 Preview, new stylus code was introduced, which can cause a test failure in an unrelated test suite, Editor.Plugins.Tools.Modeling.EditorMode.ExtrudePolygons.*. The test indirectly ...
[UDN 16536278] Sequencer: Stuck undo buffer when using AutoKey "Can't Undo while 'SetKey Value' is in progress"
UE - Editor - Workflow Systems - Jan 15, 2025Hello, Our animation team reported an issue with the AutoKey feature of the LevelSequencer, sometimes they will notice that after a while, the undo buffer no longer works. Unfortunately the issue ...
[UDN - 16673100] Calling FComponentVisualizer::NotifyPropertyModified() on a FInstancedStruct property loses all data inside because the PreviewActor spawns with default properties in the FInstancedStruct
UE - Editor - Workflow Systems - Jan 15, 2025We found a problem with the component visualizer system and the PreviewActor in the Blueprint editor. If your component is using a FInstancedStruct in anyway, either directly, in a TMap, or TArray, ...
Crash when FVolumetricRenderTargetViewStateData::Mode is not properly initialized
UE - Graphics Features - Jan 15, 2025A licensee has reported that occasionally a race condition triggers a crash during the initialization of FVolumetricRenderTargetViewStateData. If FVolumetricRenderTargetViewStateData::Mode is not pr ...
Cut & Paste in Sequencer breaks with Attach track
UE - Anim - Sequencer - Jan 15, 2025Cutting two tracks in sequencer, which one is attached to another one, and pasting it break with Attach track. By this operation, Attack track loses its binding object. Copying such tracks and paste ...
Visual Logger Timeline is not updated when Viewport is in fullscreen
UE - AI - Debugging - Jan 14, 2025Context The Visual Logger is a powerful debugging tool to create and record visual representations, and allows people to review the data. Problem The problem is that it does not record things don ...
ARKit - Handheld AR Template Experiences Periodic Hitches when Quick Launched
UE - Platform - Mobile - Jan 14, 2025Reproduced 3/3 times. Regression testing in progress. Issue was reproduced on both Windows and MacOS launching onto iOS. Issue does not reproduce when packaging and installing an .ipa app. ...
Nanite foliage missing outline when selected
UE - Graphics Features - Nanite - Jan 14, 2025When a foliage actor contains instances of Nanite and Non-Nanite meshes, the Nanite meshes don't get a selection outline when the actor is selected.[Image Removed] ...
Normals and tangents do not get normalized when recompute is on during static mesh to skeletal mesh conversion.
UE - Anim - Rigging - Jan 14, 2025When doing a static mesh to skeletal mesh conversion where the source object is an OBJ, if recompute normals or tangents is on, then the resulting normals and tangents will be broken. ...