Unreal Engine Issues
Unreal Engine Issues
Duplicated TextureLoadVirtualPageTable in GetCustomData functions in generated HLSL add to the total instruction count due to TextureLoad having side effects
UE - Rendering Architecture - Materials - Dec 4, 2024When using materials with CustomData inputs, such as the Eye material with Iris Distance and Mask, Virtual Texture samples will increase the instruction count for each unique VTPageResult. Each cus ...
PlatformerGame has blank white background during intro cut scene on tvOS
Docs - Samples - Oct 10, 2016Blank white screen during opening cutscene tvOS 10.0 ...
Landscape GrassType does not have the option to exclude Decals
UE - World Creation - Worldbuilding Tools - Foliage - Feb 8, 2016Landscape grass type lacks the option to disable decals from affecting it. ...
Mac editor mobile preview crash with MSAA on
UE - Platform - Mobile - Mar 1, 2021setting GSupportsTimestampRenderQueries=false or r.GPUStatsEnabled=0 can fix it ...
Hair sampling/aliasing in editor with sequencer
UE - Graphics Features - Jun 9, 2021UPD: affected version 4.26 so regression for 4.27 is no ...
HighResShot Alpha always 255
Expected behavior is that screenshot alpha should be 0 for pixels that did not have anything rendered into them. ...
MakeMaterialAttributes and LandscapeLayerBlend produce unexcepted results for WorldPositionOffset
UE - Rendering Architecture - Materials - Nov 8, 2021For comparison, this issue doesn't seem to occur when recreating the setup with Set Material Attributes/GetMaterialAttributes. It seems isolated to the Make/Break nodes. ...
Vector Field Initial Rotation will always have the same initial rotations for each emitter instance
UE - Niagara - Nov 11, 2019The Vector Field Initial rotation module will have the same rotation for all instances of the same emitter. This is a regression from 4.22. ...
SIGSEGV: invalid attempt to access memory at address 0x3
UE - Platform - Apple - Jan 30, 2015Crash Report: [Link Removed] ...
Translucent deferred decal materials look different when setting specular attribute directly or via constant node
UE - Rendering Architecture - Materials - Nov 28, 2025Translucent deferred decal materials look different when setting their specular material attribute directly on the material node versus setting it via a constant node ...