Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor-MetalRHI.dylib!FMetalVertexBuffer::FMetalVertexBuffer()
UE - Graphics Features - Jul 25, 2017This is a common Mac crash that has affected users since at least 4.14. Unfortunately users have not provided any descriptions of their actions when the crash occurred. ...
Editor freezes when editing sub-level referenced by more than one level
Tools - Oct 12, 2017This bug occurs when more than one level references the sublevel. Occurs in 4.18P4 CL 3676890 Unable to reproduce in 4.17. This is a regression. ...
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. ...
Property Coloration isn't supported for Nanite
UE - 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
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 ...
Ensures reparenting a child blueprint with a call to parent function in interface function
UE - Gameplay - Blueprint Editor - Oct 10, 2017REGRESSION: Yes, does not occur in 4.17.2 Ensures occur when reparenting a child blueprint that has a Call to Parent Function in a function from a Blueprint Interface. ...
PIE captures mouse when "Game Gets Mouse Control" is disabled
Tools - Oct 31, 2017When entering PIE, the mouse is captured by the viewport regardless of the "Game Gets Mouse Control" setting. Regression: No - Same behavior occurs in 4.17.2 ...