Edits to TriggerBox ChildActor are only reflected in Viewport on first edit

UE - Gameplay - Blueprint - Dec 6, 2018

Edits to TriggerBox 'Shape' parameters (in a ChildActor component) only update in Blueprint Viewport once, to view subsequent updates one must re-open Blueprint. Confirmed in 4.22 MAIN - 4631879 ...

Volumetric Light Fog Leak through objects

UE - Graphics Features - 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 ...

Artifact Dots Appear When Adjusting Focal Distance and Camera Aperture

UE - Graphics Features - 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 ...

Unused Foliage Type Causing Unbuilt Lighting

UE - World Creation - Worldbuilding Tools - Foliage - Feb 1, 2019

Foliage components will be unbuilt even after deleting all of the placed foliage in a level. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 4827620 ...

Preview Mode Button Does Not Have an Icon When Small Toolbar Icons is Enabled

UE - Platform - Mobile - Feb 25, 2019

Preview mode button is missing an icon with "Use Small Tool Bar Icons" enabled. Found in 4.22 Preview 2 CL# 5035897 and 4.23 CL# 5172174  ...

Niagara emitter shrinks when changing the camera

UE - Niagara - Mar 20, 2019

Moving the camera to be perpendicular to the Niagara Actor causes a change in its size. Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 5439949), 4.23 (CL - 5470758) ...

Private lobbies cannot be invited to on Steam

UE - Online - May 13, 2019

The old method doesn't work with private match invites as it doesn't have the right security permissions. It's still valid for dedicated servers. It also doesn't work properly with lobbies on VR eit ...

Morpher Animation incorrect if Names Overlap on Imported Mesh

UE - Editor - Content Pipeline - Import and Export - Sep 19, 2019

Overlapping names are imported (with extra renaming), however they fail to attach the animation. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, and 4.24 CL# 8748719 ...

Instance Materials are not Created When Importing an FBX

UE - Graphics Features - Oct 16, 2019

Instance Materials are not Created When Importing an FBX.  Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 9551884, 4.25 CL# 9615021 ...

Montage Root Motion does not work from sub anim instances

UE - Anim - Gameplay - Oct 25, 2019

Root motion from sub instances is not used when the parent instance is marked as 'Root Motion from Montages Only'. Proposed fix is to modify USkeletalMeshComponent::IsPlayingNetworkedRootMotionMo ...