Ray Traced Reflections Get Darker The Higher The Rougness Value is for Metallic Materials

UE - Graphics Features - Lumen - Jun 11, 2019

Instead of reflecting an average color of the surrounding, reflections become black with increased roughness values. Found in 4.22 CL# 6574378 and 4.23 CL# 6925347 ...

Changing a comment's color causes a recompile

UE - Rendering Architecture - Materials - Jun 11, 2019

Early Z-Pass no longer works

UE - Graphics Features - Jun 11, 2019

Since 4.22.2, the Early Z-pass flags are being ignored, resulting in the number of draw calls to increase. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6574378), 4.23 (CL - 6925347) ...

Disabling fog in Unlit mode does not work

UE - Graphics Features - Jun 11, 2019

The Show Flags for Fog no longer function correctly when in Unlit mode. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6574378), 4.23 (CL - 6925347) ...

Sequencer's Spawnable actor rename can not be synchronized between sequencer and outliner

UE - Anim - Sequencer - Jun 11, 2019

This behavior seems to occur only for spawnable. The licensee wants the renaming behavior to be consistent. ...

In the DragForce module drag amounts greater than one can accelerate the particle instead of slowing it down.

UE - Niagara - Jun 10, 2019

Drag force allows for values greater than 1, which can cause the drag force to exceed the initial velocity, which will continue to compound until a NaN is reached or the particle's lifetime is up. ...

Sequencer sets max FPS when a Sequence is played after being paused if it's locked to the display rate

UE - Anim - Sequencer - Jun 10, 2019

When playing a sequence the engine's max FPS will be saved in a temp value. If the sequence is paused and played that temporary value will be overwritten with the sequence's value. When restoring th ...

Mobile VR - Foliage (HISM) crash

UE - Platform - XR - Jun 7, 2019

HISMs cause mobile VR app to crash. Confirmed in 4.23 MAIN @ CL 6829265 ...

Crash when creating an animation

UE - Editor - UI Systems - Jun 7, 2019

The editor crashes when trying to add an animation key frame for the row fill setting for a grid panel ...

Mobile VR - Render Targets not working with Mobile Multi-View

UE - Platform - XR - Jun 6, 2019

Render target materials display as black on mobile VR when Mobile Multi-View is enabled. Also confirmed with LDR capture source. User also reports issues with scene depth (potentially fixed with [ ...