Unreal Engine Issues

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

Dynamic material is not discarded when other sub-sequences are played while the master sequence is playing

SceneCapture2d affects Niagara GPU particles with translucency sorting enabled

The issue comes from sorting being abled while having a scene capture actor. The enclosed 7z contains assets relevant to reproducing the issue. ...

Control Rig: Setting the components of a Vector in the graph can overwrite the default values of other variables

It seems that setting the component values of a vector via a Set node in Control Rig can effect the default values of other blueprint variables in the Control Rig. See the attached video for more d ...

A crash can occur when modifying a user-defined struct asset that's indirectly accessed through a variable node.

If a user-defined struct-type variable is declared in one Blueprint, and that variable is then indirectly accessed in a second Blueprint through a reference to the first Blueprint, modifying the str ...

Chaos : Crash when destroying part of Geometry collections clustered by AnchorField

Here's a workaround void DestroyParticle(TGeometryParticleHandle<T, d>* Particle) { auto PBDRigid = Particle->CastToRigidParticle(); if(PBDRigid) { RemoveFromMapAndArray(PBDRigid, Ac ...