Unreal Engine Issues
Unreal Engine Issues
[Attenuation][Air Absorption] - When the listener moves across the min-distance transition point, the HPF pops
UE - Audio - Spatialization - Apr 21, 2022A pop can be heard when crossing the Air Absorption distance range while using an HPF. From Slack: "I tracked it down to specifically the HPF – it's when the filter turns on, it jumps instantly to ...
Transient Subclasses of ABrush default to supporting external packaging
UE - World Creation - Worldbuilding Tools - OFPA - Aug 29, 2023ABrush::SupportsExternalPackaging overrides the base implementation of AActor::SupportsExternalPackaging which returns false for transient actors, but it doesn't call super. As a result, transient ...
Cracks in Nanite Tesselated Landscape
UE - Graphics Features - Nanite - May 13, 2024Landscape component edges can become disconnected when using Nanite Tessellation at the edges of weight-blended layers. ...
NavMesh debug material color is changed by lighting with high lux values.
UE - AI - Debugging - May 23, 2024There is a clear difference in color saturation for the nav mesh debug material between when lit by a light with low lux values (6) and when lit with high lux values (1000) and eye adaption is enabl ...
Flickering shadows/GI when DrawMaterialToRenderTarget is called per tick in PIE
UE - Rendering Architecture - Jul 11, 2024When DrawMaterialToRenderTarget function is called on tick and actors are spawned in game, the lumen shadow/GI visually flickers. Debugging shows that the lumen screen probes are flickering as well. ...
Sequencer- New takes will not respect project setting take number if initial asset doesn't have a shot number
UE - Anim - Sequencer - Jul 18, 2024With 5.2, we allowed the take separator to be multiple characters long. But it would appear that when using this feature, if you don't also have a 'shot number' before the take separator, then the n ...
Montage Section Links Don't Update When Section Deleted
UE - Anim - Gameplay - Mar 21, 2025Hi there, I noticed that there is a problem with Montage Section links not updating when a section is deleted from a montage asset. We had a montage with a "Default" section and a "Loop" section. ...
Sampling textures with bias in the path of a custom data pin causes derivative operations when avoidable
UE - Rendering Architecture - Materials - Apr 8, 2025Materials that make use of the analytical derivatives path to avoid hardware derivatives can still generate derivative operations on texture samples when the shading model has a custom data pin and ...
ResavePackages commandlet (buildlighting) fails/asserts on reflection captures in non-visible sub-levels
UE - Graphics Features - May 13, 2025When building reflection captures through the ResavePackages commandlet, it frequently triggers an ensure inside of ReflectionEnvironmentCapture.cpp. If distributed shader builds start causing prob ...
Vehicle Template dashboard texts is blurred when moving
Docs - Samples - Jan 14, 2015Descrition: When using the vehicle template the text rendered on the dashboard when using the car is blurred. This seems likely to how the text here is setup vs the hud for the 3rd person view. ...