TBaseBlendedCurve::ConvertToAdditive adds a curve track to an additive when the curve only exists in the base pose

UE - Anim - Runtime - May 29, 2023

When we create curves on additive animations, we are creating a curve based on whether the curve exists in either the base or additive pose.  This wouldn't be the expected behaviour for a user when ...

UAnimSequence::ExtractRootMotionFromRange causes problems on skeletons with different root bone ref transforms

UE - Anim - Gameplay - May 29, 2023

We should disable this block of code by default, with a config/console var to enable it: // Transform to Component Space const FTransform RootToComponent = RootTransformRefPose.Inverse(); StartTran ...

[Ensure] LoadStreamingLevel and UnloadStreamingLevel are called at the same tick

UE - World Creation - Worldbuilding Tools - May 29, 2023

There is no particular error. Developer can ignore it. ...

LayeredBlendPerBone without BlendRootMotionBasedOnRootBone exaggerates root motion

UE - Anim - Runtime - May 27, 2023

When BlendRootMotionBasedOnRootBone is false, the LayeredBlendPerBone is aggregating root motion of the child poses ontop of the base pose root motion.  (ie. if the first child pose's blend weight i ...

LayeredBlendPerBone with BlendRootMotionBasedOnRootBone set incorrectly calculates root motion weightings with more than two sources

UE - Anim - Runtime - May 27, 2023

When BlendRootMotionBasedOnRootBone is true, the code in  FAnimNode_LayeredBoneBlend::Update_AnyThread that calculates the root motion weightings for the sources doesn't appear to account for the po ...

PCG Graph on 2x2 Landscape incorrectly displays weight on paint layers

UE - World Creation - Procedural Tools - PCG Graph - May 26, 2023

In my example picture I have "Grass" set as the target attribute area but the debug cubes are appearing on the dirt and snow as well.  This only happens when the landscape subsections are set to 2x ...

ReflectionEnvironmentAndSky(1739x747,StrataMat=Off) looks to have tile artifacts

UE - Graphics Features - May 26, 2023

Reflection environement looks to be suffering tile classification artifacts ...

Placing meshes on World Partition Grid causes them to load in from any distance

UE - World Creation - Worldbuilding Tools - World Partition - May 26, 2023

This is not a regression as in 5.1.1 the meshes will load and unload in their proper cell squares when entering and exiting the load distance threshold ...

Favorites category in the Palette Panel of a Widget is no longer appearing

UE - Editor - UI Systems - UMG - May 26, 2023

This is not a regression tested in //UE5/Release-5.1 CL23901901 When Favoriting a Component from the Palette panel of a Widget the Favorites category appears then disappears. For the brief moment i ...

Actor attached to other actor in LevelInstance has very large bounds

UE - World Creation - Worldbuilding Tools - Level Instances - May 26, 2023

Attached actors do not return to LevelInstance space at the end of LevelInstance editing, and bounds contains level instance offset location. This results in huge bounds. My workaround is:  void FL ...