Unreal Engine Issues

Path Tracing shadow artifacts

First picture lit is used [Image Removed] Second picture PT is used, this occurs under certain angles of incidence. [Image Removed] ...

Volume artifacts (Bleeding)

Translucent Water renders dark with Lumen enabled.

Regression tested in 5.1 at CL 23901901 where the issue still occurs. The material will still have the normal and reflective properties. ...

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

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 ...

LayeredBlendPerBone without BlendRootMotionBasedOnRootBone exaggerates root motion

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

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 ...

ImportAssetsAutomated with CSV Factory Does Not Work with FText

When importing a CSV into a data table using AssetToolsModule with a file containing an FText, the resulting FText value is invalid. As a note, there are no issues when importing an FGuid, a FString ...

Undo then Redo Creating a Spawnable in Sequencer Creates Extra Actor in Level

There is a bug when performing an undo/redo on pasted or spawned actors in Sequencer.  It appears that the transaction system is re-creating an actor on redo, but Sequencer doesn't see that, so it ...

ReversedDepthOnlyIndexBuffer exported even when bEnableDepthOnlyIndexBuffer is false

ReversedDepthOnlyIndexBuffer is exported even when bEnableDepthOnlyIndexBuffer is false. It's likely an error and line 568 in StaticMesh.cpp should rather be ://if (!bEnableReversedIndexBuffer) <= ...

Opening the ICVFX window, then closing it will set materials on your nDisplay meshes to the materials those instances were created from

Opening the ICVFX window, then closing it will set materials on your nDisplay meshes to the materials those instances were created from ...