Importing folder with a period in its name causes crash

UE - Editor - Content Pipeline - Import and Export - May 15, 2018

Folders with periods in the name will crash when attempting to import them. ...

When creating a new widget that derives from an existing widget it will not show up in the palette hierarchy after restarting the editor

UE - Editor - UI Systems - May 15, 2018

When creating a widget based on a widget that is available by default in the editor it will not show up in the palette once the editor has been closed until the widget itself has been opened during ...

Packaging for Win32 fails on Visual Studio version 15.7.1 with multiple unable to find mspdbcore.dll errors

UE - Foundation - Core - May 15, 2018

This did not reproduce with Microsoft Visual Studio version 15.6.2 at the same CL in //UE/Main. Only occurred after I updated from 15.6.2 to 15.7.1. ...

Reflections Not Behaving As Expected in Splitscreen

UE - Graphics Features - May 15, 2018

In splitscreen, Player 0 view influences reflections for other player views. A user submitted the included test project showing the issue, and I have reproduced on 4.18.3 as well as 4.19.2 (see Spli ...

Animation Track in Shot Does Not Animate With Evaluate Sub Sequences In Isolation Enabled

UE - Anim - Sequencer - May 15, 2018

When Evaluate Sub Sequences in Isolation is enabled in a shot, other shots inside the same sequences only play the transform track and do not play their animation track Does not affect 4.18.3 Relat ...

Casting to ActorComponentOwner inside of nested Inline instanciated Blueprints owned by ActorComponentOwner disappear after Editor restart.

UE - Gameplay - Blueprint - May 15, 2018

A set of objects which can be instantiated Inline in the Editor that contain an array of References to their children that have nested Blueprint objects inheriting from a Native Base Class can cause ...

Crash in UHierarchicalInstancedStaticMeshComponent::GetOverlappingSphereCount

UE - World Creation - Worldbuilding Tools - Foliage - May 15, 2018

A licensee has reported a regression from 4.18.3 to 4.19.2 that is causing crashes to occur in their project. The crash occurs when walking onto their foliage in a packaged game. This does not happe ...

Widget clips incorrectly when added at runtime

UE - Editor - UI Systems - May 14, 2018

When adding a widget at runtime the widget it appears to clip in correctly. If the widget is more than half way off the screen, the entire widget disappears. ...

MakeNoise detected one every two calls

UE - AI - May 14, 2018

Licensee is using the Sense Hearing of the AIPerceptionSystem. When using the GamePlay Debugger they notice that one call of MakeNoise out of every two seems ignored by the AIPerception. ...

bRenderInMainPass of SkeletalMesh doesn't Work on Mobile

UE - Platform - Mobile - May 14, 2018

bRenderInMainPass of skeletalMesh doesn't work on mobile. Even if bRenderInMainPass is set to false, SkeletalMesh will be drawn on MainPass on mobile. Licensee has shared the following correction c ...