Unreal Engine Issues
Unreal Engine Issues
Adding Images: The image header is unrecognized
RC - Editor - Feb 14, 2025This issue occurs only on Windows 11 24H2, but it affects all RealityCapture versions on this OS. It is allso not possible to open the images with the Windows Photos App. ...
Changing the “DistanceField Trace Distance” requires rebuilding the lightmaps
UE - Graphics Features - Feb 18, 2025Changing the “DistanceField Trace Distance” requires rebuilding the lightmaps even though the valu never affect light baking process in Lightmass. ...
Video material broken on Mac M3+ (sm6)
TM - Rendering - Oct 21, 2025On Mac devices, the video material in the viewport will display incorrectly, appearing stretched significantly. This only seems to affect the viewport and not rendered exports. ...
BlueprintNativeEvents with no return value (void) cannot be overridden in Blueprints.
UE - Gameplay - Blueprint - Dec 22, 2014BlueprintNativeEvents (and BlueprintImplementableEvents) are not available to be overridden in a Blueprint Graph if they do not return a value. This affects both functions present in source code, as ...
Crash when Landscape Max LODLevel is set to 0
UE - LD & Modeling - Terrain - Landscape - Mar 16, 2018Reproduced in 4.19.0 CL 3944462 and 4.20 Main Unable to reproduce in 4.18.3 CL 3832480. This is a regression. ...
PlacedEditorUtilityBase class no longer ticks in the editor
UE - Gameplay - May 30, 2018This is a regression as it is working as expected in 4.18. When using the class PlacedEditorUtilityBase to draw a debug sphere, it doesn't appear in the editor in 4.19 and 4.20. ...
Rotator visual helper appears in local Presentation exports
TM - Tools - Nov 6, 2025Reported in SF [Link Removed] The Rotator animator's visual helpers will be visible in locally exported Presentations when it should be hidden. This does not affect the Translator animator. ...
Packaged game/Editor with Stereo Layers crashes when exiting game through steam VR overlay
UE - Platform - XR - Jan 29, 2018It also happens in VR preview in the editor. ...
Font advance and fallback font metrics have issues in 4.16
UE - Editor - UI Systems - Slate - Jun 5, 2017There were some font regressions in 4.16 that we've since fixed (CL# 3456916 and CL# 3425681). These are affecting live users so we should get them into the next 4.16 build. ...
Lighting Channels Do Not Function with 78+ Lights on Actor
UE - Graphics Features - Oct 20, 2017Lighting channels do not function when the number of lights affecting actors is 79 or higher. Any number of lights that is 78 or fewer will honor lighting channel assignments. ...