Unreal Engine Issues

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 ...

Crash when IK Anim Node is used in post process blueprint.

If an IK Anim node is used in a post-process animation blueprint when that post-process blueprint is active in persona. It will crash attempting to get dynamically created goal components from an ac ...

AppleARKit forces view projection matrix according to device viewport

[Link Removed] ...

Actors removed from the world are unregistered both before and after EndPlay

Actors that are removed from the world have UnregisterAllComponents called twice. Removal can be caused by unloading a data layer that owns the actor. In cases like exiting the application or destr ...

Frustum culling provides inconsistent results causing particles to render even when the bounds are out of view.

When the camera is just outside of the box bounds and it is angled directly away from it , it will start rendering the particles again (as determined by stat GPU differences) despite being out of vi ...

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 ...

Null Material Layers in Material Instances cause Opacity Mask and WPO to break on Nanite Meshes

When a Material Instance is loaded that has a nullptr layer in StaticParametrs.Materiallayers.  The Material Instance will create it's own CachedExpressionData but the ConnectedParameterMask will be ...

Additive Niagara Sprites are rendered with offset in right eye

Investigate Actors assigned to both partitions