Unreal Engine Issues
Unreal Engine Issues
Skeletalmesh generated LOD have issue with vertex color displacement
UE - LD & Modeling - Modeling Tools - Mesh Editing - May 22, 2020This one should be fix in the squeletalmesh quadric reduction own by the geometry tools. ...
Height fog removed in split screen when player1 is facing the opposite direction.
UE - Graphics Features - Sep 23, 2021Please see the UDN for a potential fix/workaround description. ...
Inaccurate motion vectors when using different position binding in renderer
UE - Niagara - Rendering - Jul 27, 2023Even though the particles are not moving, and the velocity is zero, the output motion vectors are non-zero. This seems to only happen if using two sources of particle positions. ...
FAsyncIOSystemBase::QueueDestroyHandleRequest fatal error crash on launch or package
UE - Foundation - Core - Jun 23, 2015Fatal error due to FAsyncIOSystemBase::QueueDestroyHandleRequest during launching and packaging projects. May be linked to: [Link Removed] ...
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 ...
Very slow foliage tool instance placement
UE - World Creation - Worldbuilding Tools - Foliage - Jan 5, 2017Regression since 4.13 due to change in UStaticMeshComponent::InvalidateLightingCacheDetailed ...
AbsoluteWorldPosition and PDO not working correctly in SingleLayerWater calculations
UE - Graphics Features - Oct 1, 2021The licensee has provided a recommended fix for this issue. Please see the UDN. ...
Skeletal Mesh Cloth - Removing cloth collision sources doesn't remove the prerequisite, and the collision sources are not updated
UE - Simulation - Visual - Mar 17, 2026[Link Removed] See proposed fix from partner: [Image Removed] ...
WMR native plugin trigger axis not working
UE - Platform - XR - Nov 19, 2018We are testing the new Windows Mixed Reality native support and have found that the trigger mapping to a button is working, but the trigger mapping to an axis is not, i.e. the event MotionController ...