Unreal Engine Issues
Unreal Engine Issues
Calling SetNavigationRule for widgets at runtime does not update the Nav Rule
UE - Editor - UI Systems - Sep 25, 2017Calling SetNavigationRule at runtime does not update the widget navigation of the selected widget. Regression: No - same behavior occurs in 4.16.3 (CL 3561208) ...
Data Tables can no longer import numeric enum values
Tools - Nov 1, 2017Some changes to UEnumProperty::ImportText_Internal prevent this importing the stringified number (which is a float) as an enum value. This affects the JSON importer, and maybe the CSV one too. ...
Cannot add a non-static custom thunk to a code class
UE - Foundation - Cpp Tools - UnrealHeaderTool - May 7, 2018In 4.19, it is no longer possible to create a non-static custom thunk in a class. This was possible in 4.18.3. REGRESSION: Yes. ...
Random Scene Objects are not being rendered in Raytraced Reflections in packaging builds.
UE - Graphics Features - Lumen - Jun 11, 2019Each time the build is run, different assets are missing in the reflections. Found in 4.22 CL# 6574378 and 4.23 CL# 6925347 ...
Niagara module scripts "Map Get" node displays the 'Module' parameter as "Input"
UE - Niagara - Mar 9, 2020The module parameter in a niagara module script displays the incorrect name Tested: 4.24.3, 4.25P, 4.26 ...
Property Coloration isn't supported for Nanite
UE - Rendering - Graphics Features - Nanite - Sep 11, 2023Property Coloration View Mode is not supported by Nanite. (Left cube is Nanite and isn't affected by the Property Coloration view mode) [Image Removed] ...
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. ...
[AI] SmartObject with Precondition in a persistent collection crashes editor when exiting PIE
UE - AI - SmartObject - Sep 26, 2023Adding the Precondition to the SmartObject caused an assertion when it was part of a persistent collection. The precondition needs to be able to pass its Activate method to cause the assert. This b ...