Unreal Engine Issues

Rich Text is offset when set as the child of a Retainer Box in a Widget Blueprint

It seems that when playing a Rich Text Block into a Retainer Box, it causes the text inside the yellow row style to have additional spaces added to it. The user who reported this issue also had issu ...

ProceduralMeshComponent only supports 4 out of the possible 8 UV channels

Licensee reports that Procedural Mesh Component is apparently limited to 4 UV channels, which indeed appears to be the case (e.g. UProceduralMeshComponent::CreateMeshSection arbitrarily processing 4 ...

Activate Reverb Effect node fails to activate when placed behind a Delay node

It seems that the Activate Reverb Effect node is no longer functioning when put behind a Delay node. In the test project, there is an empty actor with a Event Begin Play connected to a Delay node wh ...

Second controller input doesn't work setting client mode on PIE.

When two controllers connected, player2 input is disabled in client mode in PIE. It worked correctly in 4.25, but it has been wrong since 4.26.  Digging into FSlateApplication::ProcessKeyDownEve ...

Linux - Crash when moving/turning the viewport camera in project that contains hair

I've attached the project log, crashreport, and crash info to this ticket. This issue only appears to be happening on Linux (On both Nvidia/AMD cards) and does not happen when the hair is disabled i ...

Interface cast nodes can be placed for non-object pins

Interface Cast nodes appear to be returned as valid and context sensitive for every possible pin, even ones like floats and integers. Following the repro above, it is easy to place a node but it wil ...

Macros from temporary diff blueprints can be placed and corrupt blueprint

Following the repro, a temporary copy of a BP Macro library is loaded into memory. When you right click to place a node, it incorrectly lists macros defined in this temporary library. They are fully ...

The LoadTimeFile argument crashes package at startup

Light Propagation Volume does not work on Linux

It's easiest to see the change on the top of the table or back of the chairs when following the repro steps. I've attached screenshots of the Windows and Linux comparison with Intensity set to 20. ...

Removing a transform track from the sequencer will no longer clean up spawnable actor when the sequencer is closed

Note : Reopening the level sequence causes ensure failed. (also see callstack) LogOutputDevice: Error: === Handled ensure: === LogOutputDevice: Error: Ensure condition failed: InstanceRegistry->I ...