Folders beginning with two periods are incorrectly collapsed by FPaths::CollapseRelativeDirectories

UE - Foundation - Core - Jul 3, 2019

The Function FPaths::CollapseRelativeDirectories assumes that any instance of the characters "/.." are a relative path to the parent directory, and removes them along with the preceding directory. H ...

Editor Crashes when Isolating a Material Element on Skeletal Meshes with Ray Tracing Enabled

UE - Graphics Features - Lumen - Jul 3, 2019

With ray tracing turned on, clicking on the isolate material option next to a material slot on a skeletal mesh with more than one material slot, causes the editor to crash. Found in 4.22 CL# 7053647 ...

UAbilitySystemComponent's CurrentMontageStop() function does not use OverrideBlendOutTime Float Parameter.

UE - Gameplay - Jul 2, 2019

In the attached example, the third person mannequin character's BeginPlay() runs an Ability_Task which starts an animation montage. In the task it is specified that the blend out time (BlendOutTime ...

Compiling Child Blueprint and editing child component's class value, results in parent component's value being changed under certain compile conditions.

UE - Gameplay - Jul 2, 2019

Compiling Child Blueprint and editing child component's class value, results in parent component's value being changed under certain compile conditions. "This is because they're now pointing to t ...

"Activation" and "Trigger" keywords are not allowed as a subcategory

Tools - Jul 1, 2019

Using Activation and Trigger as subcategories names does not work in the Details Panel. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7208101), 4.24 (CL - 7216880) ...

Landscape No Longer Renders when Setting Max Desired Draw Distance Above 0

UE - World Creation - Worldbuilding Tools - World Composition - Jul 1, 2019

Landscapes no longer renders when setting max desired draw distance above 0. Found in 4.21 CL# 4753647, 4.22 CL# 7053647, 4.23 CL# 7208101. 4.24 CL# 7210422 ...

When using Subversion (SVN) and Lock's comment is Japanese outside SourceControl, parsing of xml fails and Status may become NotControlled.

UE - Foundation - Core - Jun 28, 2019

If user lock assets with Japanese comments outside source control, XML acquired in svn status may contain Japanese strings, and XML parsing may fail and become NotControlled. This issue does not oc ...

Third Party Library Plugin won't load in packaged build

UE - Foundation - Cpp Tools - Jun 27, 2019

Plugins created using the Third Party Library template won't load in a packaged build or the Launch button in the Editor Toolbar, but will if launched through the Project Launcher Window via the Edi ...

Query Params are ignored when using EQS

UE - AI - Jun 26, 2019

Trying to set the Bool Match as a Query Param causes the value to not be recognized. It just thinks the value is whatever default value it has instead of reading it from the params set in the Behavi ...

Sequencer bindings are lost when creating Sequence Player after loading a Sublevel

UE - Anim - Sequencer - Jun 26, 2019

Sequencer bindings are lost when creating Sequence Player after loading a Sublevel using LoadLevelInstance. This was reported and tested in 4.21.2 (CL-4753647). This was reproduced in 4.22.3 (CL-7 ...