Unreal Engine Issues
Unreal Engine Issues
DumpShaderStats doesn't output any shader data
UE - Rendering - Architecture - Shaders - May 1, 2024The DumpShaderStats console command doesn't output any shader stats because the code to calculate that information in DumpShaderStats (Shader.cpp) is commented out https://github.com/EpicGames/Unrea ...
Editor crashes due to a material that contains MPCs migrated from another project
UE - Rendering - Architecture - Materials - Apr 29, 2024[2024.04.29-16.49.46:563][970]LogUObjectGlobals: Warning: LoadPackage can't find package /BEURRE_040824_041224/NewMaterialParameterCollection. [2024.04.29-16.49.46:563][970]LogUObjectGlobals: Warning ...
Screen jitters while blending constrained aspect ratio of camera
UE - Anim - Sequencer - Apr 23, 2024The screen jitters when animating the size of the filmback of a aspect ratio constrained Cine Camera. Following behavior was observed by the customer: MRQ: The expected behavior - bars smoothly in ...
Changing preview mesh appears to affect initial transforms of all control rigs in level viewport
UE - Anim - Rigging - Control Rig - Apr 16, 2024It seems that switching the preview mesh in the control rig editor is affecting the initial transforms in the hiearchies of related control rigs in the level viewport. This seems to be due to the c ...
Clustering GeometryCollections in sleep state forces them to awake
UE - Simulation - Visual - Mar 27, 2024The sleep state will be overwritten in ClusterUnionManager::UpdateAllClusterUnionProperties. Clustering using AClusterUnionActor results the same behavior as well. ...
MRQ Remote Render Audio is 30 seconds later than expected.
UE - Virtual Production - Tools - MRQ - Feb 29, 2024CL 17315409 Introduced a fix that relied on processing audio samples before a render. For remote renders this extra 30 seconds of audio processing seems to have made its way into the final results. ...
"Build All Levels" does not re-AddNavigationSystemToWorld
UE - AI - Navigation - Feb 28, 2024The Build All Levels editor action cleans up the world's NavDataSet (UNavigationSystemV1::NavDataSet) as pre-rebuild world cleanup by calling: SetNavigationSystem(nullptr); inside UWorld::Cleanu ...
USkeletalMeshComponent::HandleExistingParallelClothSimulation() calling WaitUntilTaskCompletes can trigger arbitrary task that modifies currently iterated UWorld::ComponentsThatNeedPreEndOfFrameSync
UE - Rendering - Architecture - Feb 23, 2024Context ActorComponents can schedule an end-of-frame update for themselves by calling UWorld::MarkActorComponentForNeededEndOfFrameUpdate. The UWorld will iterate all those actor components once pe ...
Node errors that block compilation aren't output in compiler results log
UE - Anim - Rigging - Control Rig - Feb 7, 2024Errors from EdGraph nodes aren't being piped into the compiler results log. This can make it difficult to track down what's broken in larger rigs. ...
Lumen indirect lighting artifacts when far from world origin
UE - Graphics Features - Lumen - Feb 6, 2024Lumen seems to not be using Large World Coordinates somewhere. The Lumen Scene develops artifacts at large distances (5000 KM) from the world origin. ...