Unreal Engine Issues

ENGINE_API missing from GeomSweepMulti and GeomOverlapMulti templates

GeomSweepMulti and GeomOverlapMulti are not being exported, as the template specializations are declared outside of the physics interface class without ENGINE_API. ...

LineTraceComponent does not respect bEnablePerPolyCollision

USkeletalMeshComponent::LineTraceComponent does not properly consider bEnablePerPolyCollision. It appears to use the component's bodies, which are empty. It should be sufficient to use UPrimitiveCom ...

CCD can produce incorrect results at low frame rates

The attached project has a fixed frame rate of 30fps with a simulating CCD cube above a with a full restitution floor. The cube has an odd rotation, such that it impacts the floor at a single point ...

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 ...

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 ...