Unreal Engine Issues

FOnlineSessionLive leaves inconsistent state when FindSessions or CreateSession fail.

FOnlineSessionLive::CreateSession creates the session early into the method. Later, the method can fail but the session and is never cleared up (see the various catch statements in the tasks which o ...

Object using specific Corona Material Import by default with wrong UVs

[CrashReport] GPUCrash - exiting due to D3D device being lost - D3D Hung - Nvidia

Separating [Link Removed] into Nvidia and AMD tickets.This ticket will house Nvidia information Exported data on 5/14/2019 with following Query:1 Month Time FrameMajorVersion is 4.22.1Callstack Con ...

Translucency area has stripe-style issue on TSR

The TSR History Rejection buffer develops a grid-like artifact over translucent, camera-facing planes. ...

LevelSequence Editor consumes input, even if the user last focused the Level Viewport

LevelSequenceEditor has input priority over the Level viewport and other editor modules even though the Level viewport has been the last one selected. An example would be a cut operation. If you ha ...

Function about Comparing Manifest Version in HttpChunkInstaller does not Consider Manifest File Update

Current HttpChunkInstaller consider version data of manifest.But it does not consider the manifest file update. So, if user update the manifest file, HttpChunkInstaller ignores it. If changing the V ...

Importing animation onto a camera in Sequencer adds extra keys to the scale and rotation attributes

When importing non-baked animation (i.e. not keyed on every frame) onto a camera in sequencer, Unreal adds extra keys to the rotation and scale attributes as if it is baking the rotation and scale a ...

InstancedStaticMesh displaying corrupt lightmap data

I think I narrowed this issue down to bad UV coordinates being interpreted during the BasePassVertexShader execution applied to instancing. At this line in VertexFactoryGetInterpolantsVSToPS: flo ...

FSoftObjectPath::ResolveObject references to the Editor's object in the first frame of Movie Render Queue

When implementing a sequencer system that uses FSoftObjectPath to reference an actor placed in a level (at runtime, the corresponding actor is obtained by calling FSoftObjectPath::ResolveObject), Re ...

FNotifyNodeInterface crashes when referenced Notify is invalid

Currently FNotifyNodeInterface directly references notifies that live within the related anim sequence.  This can cause intermittent crashes when notifies are removed as the UI can still reference t ...