Skel Vert/Surf Emitter Location Local Not World Space

Physics - Clothing - Jan 3, 2019

A Skel Vert/Surf particle system attached to a cloth actor spawns particles around the origin instead of around the actor. ...

Create staticmeshnode or instancedstatic mesh node logs FNetGUIDCache warning in editor

Networking - Jan 3, 2019

The behavior in question involves a warning that FNetGuidCache gives when an Actor's construction graph adds a static mesh component, and a multiplayer session with 2 players is simulated in PIE.(Pl ...

Static Lights with IES Profiles Will Bake an Incorrect Lightmap

Rendering - Jan 3, 2019

When using an IES profile with a static light, the lightmap that gets baked will lose all detail of the IES profile. Example project attached. This doesn't occur in 4.19 CL# 4033788 Found in 4.20 ...

Material Artifacts When Using World Position and Pixel Normal Together

Rendering - Jan 2, 2019

When using "World Position" and "Pixel Normal" nodes together. it causes artifacts in the material. In 4.19 CL# 4033788 this did not occur with the same material setup. Found in 4.20 CL# 4369336, 4 ...

DECLARE_EVENT Broadcast() can be invoked outside of it's contained class.

Core - Jan 2, 2019

In UE 4.21, The current functionality that exists for DECLARE_EVENT Broadcast() does not function as the docs describe: [Delegate Events|https://docs.unrealengine.com/en-us/Programming/UnrealArchit ...

Volumetric Light Fog Leak through objects

Rendering - Dec 31, 2018

Any environment with volumetric fog enabled will have a light leak which appears through objects.  Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...

Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled

Tools - Niagara - Dec 27, 2018

Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...

Sequence node numbering error when adding execution pin.

Gameplay - Blueprint - Dec 26, 2018

When using the "Insert execution pin after" option with a sequence node "Then 0" gets removed. ...

Radial Force Breaks Locked Axes

Physics - Dec 24, 2018

Using radial force on an object that has its axes locked will force that object to move regardless of locked settings. ...