Unreal Engine Issues
Unreal Engine Issues
Tool tips on the main monitor scale to the DPI of the secondary monitor.
Tools - Aug 2, 2016If the user has different DPI Scaling set on each monitor, the main monitors tool tips will change size based on the secondary monitor. ...
Preview Asset Becomes Detached from Socket When Renamed
Tools - Dec 28, 20174.17: The preview mesh disappears entirely when the name of the preview asset is changed When a preview asset is applied to a socket, and the socket is renamed, the preview asset becomes detached ...
Nanite Mesh Dither Opacity Mask Not Working in 5.6.0
UE - Graphics Features - Nanite - Jul 30, 2025In Unreal Engine 5.5.4, the Dither Opacity Mask option in a Masked material works correctly on Nanite meshes. However, in version 5.6.0, the dithering effect no longer applies to Nanite meshes. ...
MRG - Additional Post Process Render have a black alpha channel
UE - Virtual Production - Tools - MRQ - Feb 7, 2026Additional Post Process renders always have a black alpha channel ...
Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point
UE - Editor - May 3, 2022Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point Repro Rate: 4/4 Tested this in //UE4/Release-4 ...
[Quartz] - The multiplier does not always respected on the Quartz Quantization Boundary
UE - Audio - May 13, 2022Increasing the multiplier past a certain point causes sounds on a Quantization Boundary to struggle to play at the correct time. The repro above uses 1/32, but this also repros with other values. ...
Adding entries to TMap in custom asset type not always reflected without restarting editor
UE - Gameplay - Blueprint - Aug 22, 2017If you adding entries to a TMap in a custom asset type in the content browser, after a certain number of entries the last entry fails to be found with the "find" function for TMaps in blueprints, ev ...
Screen space reflection flickering
UE - Graphics Features - Nov 26, 2019Flickering 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 ...
Adding/Removing a Material Layer on a Parent Material doesn't propagate to Children correctly
UE - Rendering - Architecture - Materials - Jun 9, 2026When a Material Layer is added to or removed from a Parent Material the layer changes don’t automatically propagate to Child Materials correctly even if the Parent Material is saved. The Child mate ...
Lighting channels not working as expected when enabling Ray Tracing Shadow
UE - Graphics Features - Lumen - Oct 13, 2020Non-Ray Tracing Shadows are only cast from lights on meshes assigned to the same Lighting Channel. When enabling Ray Tracing Shadows this is not the case. Lights will still cast Ray Tracing Shadows ...