Unreal Engine Issues
Unreal Engine Issues
HLOD is not created correctly when using RuntimeSpatialHashPlaceSmallActorsUsingLocation.
UE - World Creation - Worldbuilding Tools - HLOD - May 30, 2022HighResShot results depend on viewport size
UE - Graphics Features - Jul 19, 2022Licensee wants to take screenshots that are more than the size of the viewport ingame. However, they are having trouble because the results depend on the size of the viewport. ...
ProceduralMesh created by ImpostorBaker cannot be saved.
UE - Graphics Tools - Modeling Tools - Mesh Editing - Jan 12, 2023Clearing the DynamicMaterial reference will save it, but several licensees have inquired about it, so it would be kind if it were corrected. ...
Sequence is marked dirty when closing
UE - Anim - Sequencer - Feb 24, 2023Crash when exporting static mesh actor to FBX (Array index out of bounds)
UE - Editor - Content Pipeline - FBX - Apr 25, 2025I set the Forced LOD Model on the mesh component > 1, then tried to export, this is what causes the crash. Here is my suggested fix, we just don't use Git or I'd do a PR: In the else() branch of FF ...
Crash when displaying lumencards on map with many objects
UE - Rendering - Graphics Features - Lumen - Aug 1, 2025There is a thread conflict between FRDGBuilder execution in Background Worker and LumenVisualizer's LumenCard add/delete process. When lumen cards are displayed in a scene with many objects, a crash ...
InvariantLeft and InvariantRight justification mispositions wrapped multi-line text
UE - Editor - UI Systems - Feb 26, 2026When a UMG Text widget is set to Auto Wrap and uses InvariantLeft or InvariantRight, the wrapped visual lines are positioned differently than expected compared to Left/Right. In the current engine ...
Material expression "FloatToUInt" can trigger a check() when input is invalid
UE - Rendering - Architecture - Materials - Mar 11, 2026When a "Float to UInt" Expression is used in a Material Graph with a valid direct input connection that fails to evaluate, function UMaterialExpressionFloatToUInt::Compile() does not catch the input ...
Camera actor preview window does not display properly in orthographic view
Tools - Apr 13, 2015Adding a camera to the scene and setting the projection mode to orthographic doesn't display properly in the preview window. ...
LIVE: The editor crashes on Mac when attempting to open the attached Media Player .uasset
Tools - Nov 4, 2014Does not occur on PC. CRASHREPORT: [Link Removed] CALLSTACK: <unknown module>! FOutputDeviceMacError::HandleError() <unknown module>! EngineCrashHandler(FGenericCrashContext const&) <unknow ...