ILC/VLM doesn't affect Static Staticmesh at all on Mobile

UE - Platform - Mobile - Sep 23, 2019

In practice, developer wants some Static-Staticmesh actors don't build lightmaps to save iteration time as well as Memory and Package size; but still want lit by Indirect lightings ...

Camera Shakes with Oscillation Blend Out Time do not play for their full duration in Sequencer

UE - Anim - Sequencer - Sep 20, 2019

Camera shake oscillations with blend out time do not play their full duration in sequencer.  ...

Shots with Time Scale less than 1.0 do not render from master sequence

UE - Anim - Sequencer - Sep 20, 2019

Setting a shot's time scale to less than 1.0 will cause it to not be rendered. ...

"Weld Simulated Bodies" Collision flips when welding Skeletal mesh to Static Mesh

UE - Simulation - Physics - Sep 20, 2019

Collision flipped when welding a skeletal mesh to a static mesh. Welding Skeletal mesh as parent actor does not cause collision to flip. Showflag.Collision 1 shows correct collision. (However px ...

Upgrading from 4.22 to 4.23 can break emitter inheritance

UE - Niagara - Sep 20, 2019

Copied emitters will have their inheritance broken when migrating from 4.22 to 4.23.  ...

The Left Mouse Button Pressed event is not firing when Input Mode Game Only is set and Show Mouse Cursor is true

UE - Editor - UI Systems - Slate - Sep 20, 2019

The Left Mouse Button Pressed event is not firing when Input Mode Game Only is set and Show Mouse Cursor is true. Attached is an example project (4.23) that demonstrates the issue. Found in 4.23.0 ...

Pivot Offset for grouped objects resets to another objects offset

Tools - Sep 19, 2019

Grouping objects with individual pivot offsets causes a new offset location to be selected after manipulating the groups rotation or translation.  ...

Client crashes after second seamless travel when a blueprint manually placed in the world spawns a replicated actor

UE - Networking - Sep 19, 2019

When a user loads into a level that spawns replicated actors using manually placed blueprints twice using ServerTravel with Seamless Travel enabled it will crash. It looks like the engine can't find ...

Render Target Is Jittery/Blurry When Used With A Scene Capture Component

UE - Graphics Features - Sep 19, 2019

Render Target is Jittery and Blurry When Used with a Scene Capture Component. Found in 4.23 CL# 8386587, 4.234 CL# 8748719 This is a regression. ...

Material Translator Uniform Folding Is Not Operating Properly

UE - Graphics Features - 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 ...