AbsoluteWorldPosition and PDO not working correctly in SingleLayerWater calculations

UE - Rendering - Oct 1, 2021

The licensee has provided a recommended fix for this issue. Please see the UDN.  ...

There's no motion blur on streaming GeometryCache

UE - Editor - Content Pipeline - Datasmith - Sep 28, 2021

UDN customer mentioned: "there looks to be support for motion vectors as exported from DCC apps (for rare cases like fluid sim), but regular in-engine motion vector calculation for regular motion bl ...

Groom + RT refraction not working correctly

UE - Rendering - Sep 28, 2021

Deleting the first instanced subobject entry from a Blueprint map or set variable's default value can result in an editor crash.

UE - Gameplay - Blueprint Compiler - Sep 27, 2021

Deleting the first instanced subobject entry from a default value for a map or set variable can result in accessing an incorrect subobject for the element's value during reinstancing, which can then ...

Pasting an element into a Widget Blueprint hierarchy causes a crash

UE - Editor - UI Systems - Sep 23, 2021

Pasting an element into a Widget Blueprint after removing the canvas panel will result in a crash.  This has been tested with the border and button elements. This issue is occurring in //UE5/Releas ...

InitializeAnimScriptInstance may only need to be called if the mesh actually changes when restoring state in Sequencer

UE - Anim - Sequencer - Sep 23, 2021

The fix for [Link Removed] reinitializes the anim bp whenever the animation section restores state, it may only be necessary to reinitialize it if the skeletal mesh changes. ...

Asset Manager settings that worked in 4.26 now have extra invisible broken types

UE - Foundation - Core - Cooker - Sep 23, 2021

For 4.27/5.0 (as part of [Link Removed]) we changed the asset manager's settings to be a key-indexed config array which gives more safety with removing entries via the UI. However, this actually bro ...

Virtual Shadow Map artefacts on animations

UE - Rendering - Sep 23, 2021