Unreal Engine Issues

PreConstruct visualization does not appear to work for Grandchildren of a widget blueprint

When creating a grand child widget it appears that the preconstuct does not behave as expected. The child widget fails to render widgets that belong to its parent's parent. ...

Is Over Hit Test Visible Widget does not return false when over a widget that is not hit test visible

The Is Over Hit Test Visible Widget node does not return false when over a widget that is not hit test visible ...

Gamepad input affects multiple game instances at once, due to not needing focus.

Since Gamepad input works without needing focus (which was added in 4.9 with [Link Removed]), a Gamepad's input will also affect all instances running on the same computer. Regression?: No This occ ...

Changing class of Sub Anim Instance will crash if tag is specified

Switching sub anim instances that have a set tag will crash the editor when compiled. This is likely due to the use of Tag as the object name. The tag does not change, and the old UObject is still a ...

High bandwidth usage on listen servers, even with bare minimum replication

UDN user claims that in an empty level, when using a listen server, bandwidth is higher than expected - ~5.5KB/sec for two connections, and appears to be framerate dependent. Has posted screenshots ...

Post Process Volume not updating in preview

Generate Project Files process fails if SwarmAgent.exe is not present

This issue appears to be the result of the fix for [Link Removed] which removed RPCUtility from the Engine. A licensee noted that they were now seeing an issue when attempting to generate project fi ...

AccumulateCurveMetaData unnecessarily marks the package dirty

AccumulateCurveMetaData makes calls to MarkPackageDirty even when the data hasn't changed. ...

PoseAsset::GetAnimationPose Normalizing all bone rotations per track

In UPoseAsset::GetAnimationPose after the curves are blended the all out pose's rotations are normalized for each track instead of just the specific bone for that track (See linked UDN for more deta ...

Using more than a single break node disables fast path

Using more than a single break struct node in sequence (despite no break nodes performing calculations) disables fast path. Splitting structs instead does not cause this issue. ...