Unreal Engine Issues

Editor crashes when child blueprint uses billboard in construction script

The editor is crashing when a child blueprint uses a billboard in the construction script after hovering over 'apply instance changes to blueprint' from the details panel. ...

Skylight Indirect lighting Intensity has no effect

The Skylight actor has minimal effect on indirect lighting compared with 4.10.1 and the Indirect Lighting Intensity slider has no effect at all. Image attached for comparison bwtween 4.10.1 and 4. ...

Simulated ability tasks not being cleaned up in UActorChannel::ReplicationMap

I've noticed the issue occurring in both 4.20.3 (CL 4369336) and 4.21.0 (CL 4541578). The user on AnswerHub has also noticed the issue in 4.20.2 (CL unknown) and claims the issue did not occur in 4. ...

Broken Composite Decorator

Reported by Square Enix on UDN, ...

Crash: Landscape Materials Missing on Shipping and Development Packaged Builds

When running a packaged build of a project with a level with a landscape that has a material assigned it will crash (shipping build) or not retain the assigned material (development build). There i ...

Engine Crashes On Scene Close When An Actor Is Spawned With Templated FActorSpawnParameters

When an actor is spawned with Spawn Parameters that are templated the engine crashes when closing a scene. This wasn't happening when there wasn't a physics constraint on the spawned blueprint. Thi ...

Bounds location of apex destructible mesh will not be updated when added to sequencer directly from content browser

Destructible mesh's location will not be updated when added to sequencer directly from content browser, unless two different locations are keyed on the transform track of the mesh. We found the bug ...

Can't update position with SetPositionInViewport when enable global invalidation

When GlobalInvalidation is enabled, do not update to the position set by SetPositionInViewport. It works fine when GlobalInvalidation is disabled. ...

Moving a static mesh placed across world partition grids does not properly move the foliage instance on it

[MetaSounds][Wave Player] - 5.1 Wave Player channel output maps differently for Vorbis than other codecs

The channel output for 5.1 Waveplayer on MetaSounds is different when Platform Default (Vorbis) codec is chosen on Windows Platform Default - L, C, R, LS, RS, LFEBink, PCM, ADPCM - L, R, C, LFE, LS ...