Unreal Engine Issues

Client may receive failure message before ClientTravel RPC during non-seamless travel

See linked UDN for more info. When a server initiates a non-seamless travel, it will inform any connected clients by sending the reliable ClientTravelInternal RPC. After a delay (controlled by Serve ...

MoviePipeline: OnExecutorErroredImpl has inverted bError bool usage

OnExecutorFinishedDelegateNative and OnExecutorFinishedDelegate broadcasting an bFatal into a bSuccess parameter which is inverted. Canceling a render should be considered an error, not a success. ...

TSR does not seam to work on AMD

[AI] NavModifierComponent includes non-navigation relevant primitive components in its navigation bounds calculation.

If an actor contains multiple primitive components, it uses all of them for calculating navigation bounds even if some of the primitives are not marked as navigation relevant. Toggling navigation re ...

Crash when changing Animation Segment Playrate in Animation Composite

See [Link Removed] ...

[MetaSounds][Wave Player] - Looping sound waves is not sample accurate

When playing the two metronome sounds, it is expected that when the 1bar asset loops, it will stay in time with the 12 bar asset; however, instead phasing begins to occur. This does not occur when ...

Crash when attempting to paste a spawnable sequencer binding with a null object template

Moving a Widget in UMG by dragging the position value results in Stuttering and Jerking

This is a regression. Tested in //UE4/Release-4.27 CL#18319896 Moving widgets within UMG by dragging the position value with any sort of speed results in the widget stuttering and jerking around.  ...

Landscape visibility mask cannot be imported/exported

The ability to import/export visibility mask was available in 4.27. ...

Bink Media Player leaves last rendered frame in viewport on play

Essentially, when set to "Overlay Fill Screen," the Bink Media Player will render the last viewed frame over all game levels in PIE, without actually playing the video or being given any sort of pla ...