Unreal Engine Issues
Unreal Engine Issues
InstancedStruct hard references fail to cook in World Partition map
UE - World Creation - Worldbuilding Tools - World Partition - Mar 12, 2024Hard references through InstancedStruct do not cluster the actors together into the same cell. ...
When copying category properties, all the EditConst flags are not checked. This overrides variables that should not be written.
UE - Editor - Workflow Systems - Mar 12, 2024If you create two actors that have the same structure of variables in a category, and you try to copy the category variables of one actor into the other, variables that have ReadOnly/EditConst speci ...
Jitter playing animation on actor located far from origin
UE - Anim - Runtime - Mar 12, 2024A licensee has reported an issue with jitter when playing animations on an actor translated far from the origin (300000.0 units). This repros on the First Person Template. The issue is more obviou ...
Playing two instances of the same level sequence with an audio track will not work as expected.
UE - Anim - Sequencer - Mar 11, 2024Two instances of the same level sequence playing audio will cause the audio to stop playing. ...
Crash during shader compilation when r.Shaders.Optimize=0
UE - Rendering Architecture - Shaders - Mar 11, 2024The primary shader crashing is "FVisualizeLumenSceneCS" which I've put in the callstack section, but I think this is more likely a binding problem as I'm also see the following crash with cloud shad ...
CharacterMovementComponent: simulated proxy can go into falling due to linear velocity quantization when using custom gravity
UE - Gameplay - Components - Mar 8, 2024The character movement component in void UCharacterMovementComponent::SimulateMovement(float DeltaSeconds) evaluates whether to find the floor when simulating the movement of the simulated proxy ...
Materials with transparency still visible in alpha with holdout in Render layers.
TM - Tools - Mar 8, 2024The Transparent materials like the Glass don't behave correctly in Raster (in PT is working as expected). They are visible in Alpha with Holdout. This is an Engine limitation for now. But we sho ...
Enhanced Input Action Key Remapping maps old mapping over incoming mapping in an unintuitive way
UE - Gameplay - Input - Mar 7, 2024On EnhancedInputSubsystemInterface.cpp:1040, RebuildControlMappings has a check to preserve mappings for identical action key maps. In most cases, this appears to work correctly; however, in the cas ...
PostLoadGroup can cause materials to cache GWhiteTexture into uniform expressions
UE - Rendering Architecture - Mar 6, 2024It may occur that during loading screens, materials using material layers will load with GWhiteTexture before the real textures are ready. This seems to be because of a race condition due to PostLoa ...
TakeRecorder does not add a track to a level sequence when niagara FX is spawned
UE - Anim - Sequencer - Mar 5, 2024In UTakeRecorderActorSource::EnsureObjectTemplateHasComponent() function, MakeUniqueObjectName() generates the same name of a component which CachedObjectTemplate for TakeRecorder has already had. T ...