Opening blueprint macro library opens an unrecognized tab of compiler results

UE - Gameplay - Blueprint Editor - Oct 29, 2019

When a blueprint macro library is opened, an unrecognized tab of compiler results would open with it. Below is the warning message: LogTabManager: Warning: Cannot spawn tab because no spawner is r ...

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 ...

sRGB flag is enabled when importing hdr image file

UE - Editor - Framework - Import and Export - Oct 23, 2019

The sRGB flag is enabled when importing hdr files. This is disabled in PostEditChangeProperty, but remains enabled if we do not edit the file. I think the sRGB flag should be disabled for hdr image ...

Scrubbing an Animation with Process Root Motion does not apply root motion

UE - Anim - Gameplay - Oct 18, 2019

When EnabledRootMotion and Process Root Motion are both enabled for an animation with root motion, scrubbing an animation does not match the result of playing the animation. The playing animation al ...

Event Blueprint Initialize Animation executes multiple times per instance per frame

UE - Anim - Runtime - Anim Blueprints - Oct 10, 2019

When editing the default values of a BP using an ABP, the ABP's initialize event will be triggered multiple times in a single frame.  ...

Custom Depth does not override occlusion if it's set during runtime

UE - Rendering - Oct 4, 2019

Adding a Custom Depth material at runtime does not make the object its applied to render through walls. Tested in 4.22.3 (CL - 7053647), 4.23 (CL - 8386587), 4.24 (CL - 9413529) ...

Material Translator Uniform Folding Is Not Operating Properly

UE - Rendering - Sep 19, 2019

Uniform folding is not working with material parameter collections along with one additional unnecessary instruction generated.  Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8748719 ...

Vive - Motion Controller Component - Active Scene Capture causes 'Low Latency Update' lag

UE - Platform - XR - Sep 18, 2019

When a scene capture is active, attachment will lag behind parent. (Similar to [Link Removed] ) ...

Renaming Sprite Actor in Struct Blueprint, and closing the Editor causes de-reference

UE - Gameplay - Sep 12, 2019

Paper Sprite actor set as a Default Value in a Blueprint Struct is set to none, when the sprite is renamed, saved, and the Engine is restarted. ...

Vive - PIEVR 'Set World To Meters Scale'

UE - Platform - XR - Sep 4, 2019