[MetaSounds] - Changing Metasound Source's Input Name Resets Preset's Inputs

UE - Audio - MetaSounds - Nov 15, 2022

Reproduced 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

RC - Editor - Feb 14, 2025

This 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, 2025

Changing 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, 2025

On 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. ...

Screen space reflection flickering

UE - Graphics Features - Nov 26, 2019

Flickering is occuring when using a reflection material with screen space reflection enabled. Did not start occuring until 4.19 and beyond.  Tested in: 4.23.1 CL#9631420, 4.24 P3 CL#10283392, 4 ...

[CrashReport] Linux crash - llvm::TargetLowering::LowerCallTo()

UE - Platform - Linux - Jul 20, 2017

This is a common Linux crash in 4.16.2. ...

Package build fails after disabling VR plugins

UE - Platform - XR - Mar 27, 2017

Package build fails after disabling VR plugins and launching the project The error message that pops up is: Fatal error: [Link Removed] [Line: 353] Missing global shader FPixelShaderDeclaration, P ...

Difference in LODs between PIE and editor

UE - Rendering Architecture - Dec 7, 2023

It is possible to repo this without the exact steps, but that leaves it ambiguous if the camera moved when exiting PIE or not. ...

Niagara and Groom causes exception crash on Launch when using

UE - Simulation - Physics - Mar 2, 2020

Trying a Launch after every step shows that the problem occurs as soon as the GroomAssetSystem is added to Niagara. If the GroomAssetSystem is removed, the game launches fine (but the hair doesn't m ...