Unreal Engine Issues

Crash on multi viewport when streaming in sub level with rect lights

Very thin meshes cause flickering with emissive materials.

The licensee has reported that when you make a mesh extremely thin (e.g. z = 0.0001), it can cause emissive materials applied to the mesh to flicker. ...

Crash when adding an Event Write node to a Niagara Scratch Pad module

It seems that the crash is related to all of the "Write" events. I tested the Event ChaosDestruction Write, Event Float Write, and Event Bool Write and all 3 caused the crash, but their "Read" count ...

Apex Destructible meshes are disappearing at certain distances during Runtime.

Green spheres at "4.3 - Destructible Assets" flash in an out of view. Can not be viewed on the left of the spheres.When playable play is close to the spheres they disappear no matter the position.Gre ...

Fast Path pin update can break when anim BP compilation generates warnings

It seems that a Anim BP that generates a warning will break the updating of pins that are connected via fastpath in other parts of the graph. This was reported on the following UDN: [Link Removed] ...

HeaderMarkForPacketInfo.GetNumBits() == 0 when closing NetConnection during Tick

Licensee reported getting this error on PS4 after losing internet connection or putting the console into rest mode. See linked UDN for callstack. The NetConnection calls Close during its Tick, due ...

FDistanceFieldAsyncQueue crash during cook with MetaHuman Hair assets

Groom/hair "exploding" in multiplayer mode (PIE Listen Server + 2 Players)

When the sequencer is shot, the constraint Binding ID becomes an unresolved binding

This problem is not reproduced in 4.25. ...

SkyLight IBL looks blurry on Android