Possible data loss/corruption when loading levels in editor

UE - Gameplay - Jul 18, 2018

Reported behavior: Given Level_A which contains object_X, where object_X references Level_BDeleting object_X causes AssetRenameManger to check if we need to patch up other levelsLevel_B is load ...

In Texture paint mode falloff is not respected when dragging to paint

Tools - Jul 20, 2018

Multiple mouse samples per frame are causing this to happen. code needs to be moved to tick ...

Player/Visibility Collision Doesn't Work with InstancedStaticMesh

UE - Simulation - Physics - Jul 24, 2018

Player/Visibility Collision doesn't work with InstancedStaticMesh or HierarchiInstancedStaticMesh components.  Found in 4.19 CL# 4033788, 4.20 CL# 4212847, 4.21 CL# 4221482 ...

Toggling off the Gameplay Filter Tag causes all Content assets to be shown

Tools - Jul 24, 2018

Toggling off the Gameplay Filter Tag causes all Content assets to be shown in the Content Browser. This reported and tested in 4.19.2 (CL-4033788) and tested in 4.20 (CL-4212847) and Main 4.21 (CL- ...

FBX Importer: Staticmesh socket rotation is not import correctly

Tools - Jul 23, 2018

The fbx axis rotation conversion is apply twice for socket since they are local to the static mesh ...

Set Material in Blueprint Causing Crash

UE - Graphics Features - Jul 30, 2018

Using "Set Material" for a static mesh in blueprint causes a crash. Working properly in 4.19 CL# 4033788 Found in 4.20 CL# 4233996 and 4.21 CL# 4234136 This is a regression. ...

Instance's parameter value for Child BP is not reflected in cooking if parent is nativized

UE - Gameplay - Blueprint - Jul 31, 2018

If an instance of a child BP has a non-default value for its parameters, that value will be ignored in the cooking process if the parent BP is nativized but the child is not and the default value fr ...

Cloth cannot be updated when game paused

UE - Simulation - Physics - Character - Jul 30, 2018

Having cloth set to be tick-able even when paused causes crashing upon pause. This prevents simulating cloth while the level is paused. ...

Scrollbox widget moves much slower when using a gamepad

UE - Editor - UI Systems - Aug 1, 2018

Using the gamepad to scroll a scrollbox causes the scrolling to move slower. Tested in 4.18.3(CL - 3832480), 4.19.2 (CL - 4033788), 4.20.1 (CL -  4233996), 4.21 (CL  - 4245542) ...

CurrentTransaction ensure when duplicating an EQS generator

UE - AI - Aug 3, 2018

When duplicating a Generator inside an Environment Query, the action triggers an ensure and stalls the Editor for a few moments. This issue was reported and tested in 4.19.2 (CL-4033788). It was r ...