Unreal Engine Issues

Iris - Non-replicated properties of FInstancedStruct reset after replication

This issue only occurs with Iris enabled. ...

Interchange: Forcing "Bind Pose Time Zero" to true doesn't always give good result

When using the legacy fbx importer with time zero option to true the skinning is good. So its a regression. Would be awesome if it can be fix in 5.5.1 ...

Safezones on Android not set properly when orientation changes

Looks like the resize that does the safe zone update is done before the orientation is updated.  I suggested swapping the order to licensee in the UDN ticket and it worked for him.  This should be t ...

Optimization: CharacterMovementComponent doesn't need overlap check for combining moves for stationary characters

The overlap checks are used to see if we can warp back to the previous position to combine network moves to longer moves, but making sure we wouldn't put the character in penetration when rolling ba ...

Hair Material's Tangents input has no effect in PathTracing

Expectation: Tangent should work on Hair Material ...

Additive Niagara Sprites are rendered with offset in right eye

Static/stationary child actor components are invisible and/or move position when placed inside a dynamically loaded level

When loading a non-world partitioned level into a persistent world partitioned level, parent actors with child actor components within the loaded map will move position or become invisible. Within t ...

Reduce the overhead of World Partition cells UObjects on GC

Users with large numbers of UObjects (500k+) that are using World Partition want to enable GC actor clustering to handle streaming levels but no performance gains are realized when enabling GC clust ...

Depth of Field blur is inconsistent with r.ScreenPercentage == 100 (Dynamic resolution)

Depth of Field, with "r.DOF.Recombine.Quality = 0" will adjust the size of the depth in focus based on screen percentage. This might be related to over-fitting from the tile classification, because ...

Objects animated in Sequencer fail to trigger collisions against stationary characters with character movement components

When an object, such as a cube, is animated in sequencer and that object's path intersects a stationary character with a character movement component, the object will pass through the character with ...