Unreal Engine Issues
Unreal Engine Issues
Crash occurs when executing r.RHIThread.Enable 2 command
UE - Rendering - RHI - Jan 19, 2023This is not a regression. Tested in //UE5/Release-5.0 CL20379098 Editor crashes with an assertion after executing the command r.RHIThread.Enable 2 ...
Placing meshes on World Partition Grid causes them to load in from any distance
UE - Engine Scaling - Streaming - World Partition - May 26, 2023This is not a regression as in 5.1.1 the meshes will load and unload in their proper cell squares when entering and exiting the load distance threshold ...
Material Function Instances do not show up in the Material Function Call node
UE - Rendering - Architecture - Materials - Jun 5, 2023This is not a regression. Tested in //UE5/Release-5.1 CL23901901. The Material Function Instance can be dragged and dropped into the Material Function Call. ...
Property Coloration isn't supported for Nanite
UE - Rendering - 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] ...
Camera set to Projection Mode Orthographic doesn't appear to be rendering Sky Atmosphere
UE - Rendering - Architecture - Sep 13, 2023This is a regression. Tested in //UE5/Release-5.2 CL26001984 It appears Sky Atmosphere isn't rendered by a camera with projection mode set to Orthographic. ...
[MetaSounds] - Changing Metasound Source's Input Name Resets Preset's Inputs
UE - Audio - MetaSounds - Nov 15, 2022Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...
Adding Images: The image header is unrecognized
RS - 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 - Rendering - 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. ...
Using TInlineAllocator with a large number in TArray that is in an AActor class will cause child Blueprint class to call an assert while parent class will not
UE - Foundation - Core - Jul 22, 2016If a TArray has a TInlineAllocator with a large number and the class is used with a child Blueprint, the editor will throw an assert. If the base C++ Class is used instead of the Blueprint, the asse ...