Navigation obstacles remain when turning off bCanEverAffectNavigation in Blueprint actor

UE - AI - Nov 30, 2018

Editing the bCanEverAffectNavigation flag on an Actor Blueprint is propagating the value of the property to the Blueprint instance, but fails to properly update the navmesh according to the new valu ...

Regression: Shader compile failure with SceneDepth in mobile and PC, ES3_1

UE - Platform - Mobile - Nov 30, 2018

SceneTexture:SceneDepth node is not properly compiled in ES3_1. Regression? yes, It is working in 4.20.3 launcher version. This log come up with compile failure LogMaterial: Display: Missing cache ...

Setting the Comment Text on a comment box creates two Rename Node transactions in the Undo History

UE - Gameplay - Blueprint - Nov 27, 2018

Setting the text on a comment box creates two Rename Node transactions in the Undo History This issue occurs when setting the comment text of a comment in any graph (blueprint, material, control ri ...

TSoftObjectPtr does not replicate properly

UE - Networking - Nov 27, 2018

Right now USoftObjectProperty does not implement NetSerializeItem so it falls back to the implementation in UObjectPropertyBase. This only works correctly if the object happens to be in memory, othe ...

Setting KeepState as default in LevelSequences makes Sequencer blend animations not as expected

UE - Anim - Sequencer - Nov 27, 2018

Setting "Keep State" for an animation in sequencer makes the sequence behave differently in Sequencer and in Play Mode. The animations appear to be blending together instead of having normal transit ...

Incorrect formatting of #include statements in new code class added to project that is not properly set up for IWYU

Tools - Nov 27, 2018

Attempting to add a new code class to a project that is not correctly set up for IWYU (such as an older project that may not have been properly modified for IWYU when upgrading) will result in the b ...

4.21 PIE Issues in High DPI

Tools - Nov 26, 2018

Using a High DPI monitor with a multiple players PIE window results in the 2nd PIE window not saving its location when moved around. Using a monitor with a smaller DPI scale the 2nd window will save ...

Reversed Animations don't play properly using Skeletal Mesh Pose and animations with Keep State in Sequencer

UE - Anim - Sequencer - Nov 26, 2018

The bug seems to only reproduce when setting animations in sequencer and only if the animations are set to "Keep state". Setting them to "restore default" makes the reversed animation play correctly ...

Alpha Compression Artifacts

UE - Graphics Features - Nov 23, 2018

Confirmed in Main 4.22 @ CL 4586854 in 4.21 Alpha looks to be about 1 pixel larger than other channels in certain parts of the texture "The issue is not improved by changing compression settin ...