SceneCapture2d affects Niagara GPU particles with translucency sorting enabled

UE - Niagara - May 11, 2021

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

UE - Anim - Rigging - Control Rig - May 11, 2021

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.

UE - Gameplay - Blueprint Editor - May 11, 2021

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

UE - Simulation - Physics - May 10, 2021

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

Seamless travel is preventing Server Travel

UE - Gameplay - May 10, 2021

Seamless travel seems to not be functioning properly.  With Run Under One Process set to false and Seamless travel enabled, the ServerTravel command is not bringing the server to the specified map.  ...

Nativized blueprint does not support reading values from TRange structs

UE - Gameplay - Blueprint - May 10, 2021

Compile errors will occur during packaging with Blueprint nativization enabled if e.g. "Get" nodes are placed in a Blueprint on FFloatRange struct types (or any other explicit TRange derivative) and ...

AllowCommandletRendering D3D12 device crash

UE - Graphics Features - May 10, 2021

Problems in skeletal mesh merge

UE - Editor - Content Pipeline - Asset Build - May 10, 2021

There are a few issues a licensee has found with the skeletal mesh merge operation. See the UDN for more details and the proposed fixes. Note, the issue with the cloth merge is already logged in a ...