Crash when audio device is unplugged and the audio mixer engine is in use

Audio - Jan 11, 2019

The Editor crashes when using the new audio mixer and adding/removing a USB headset to the PC. ...

Artifact Dots Appear When Adjusting Focal Distance and Camera Aperture

Rendering - Jan 11, 2019

When shifting camera aperture and focal distance, dot artifacts appear on meshes. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4708082 ...

Wireframe Appears Aliased and Draws Behind the Editor Grid

Rendering - Jan 10, 2019

When the Editor grid is enabled, it draws over the wireframe objects. This is especially clear in orthographic views where the grid completely obscures wireframe lines aligned to the grid placement. ...

Problem in deleting multiple node objects in Animation Sequence

Anim - Animation - Jan 10, 2019

From what I could see this is different than JIRA issue UE-13045. All the selected nodes information seem correct until the NodeObject->Delete(Sequence) in SAnimNotifyPanel::DeleteSelectedNodeObjec ...

Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited.

Gameplay - Blueprint - Jan 8, 2019

Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited. ...

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. ...

Only the last simple collision added to a static mesh is counted for sweep

Physics - Jan 3, 2019

When using multiple simple collisions on a static mesh it appears that sweep only uses the last collision added when calculating when/if to stop. ...

Replicated component leak on clients if RPC forces construction and server destroys it in the same frame

Networking - Jan 3, 2019

RPCs called on actors force a channel to be opened and the actor to be replicated at least once. If the RPC is called on a new replicated component while the actor channel is already open, but the ...

Vehicle destroyed when long stiff value is set to 0

Physics - Jan 3, 2019

When setting the Long Stiff value to 0 for wheels it appears to destroy the actor as soon as the wheel come in contact with the ground ...

Virtual Bone effect is lost after re-importing mesh

Anim - Dec 31, 2018

After setting up a Virtual Bone on the skeleton and having it drive a Skeletal Control Node in an Animation Blueprint. Reimporting the skeletal mesh will cause the setup in the Anim BP to revert bac ...