Crash when changing the variable type of a variable used in a blutility function

UE - Gameplay - Blueprint - Feb 22, 2019

When changing the variable type of a variable that is used in a function for a blutility a crash can occur ...

Child Actors are not replicated to clients when the parent blueprint is nativized

UE - Gameplay - Feb 22, 2019

Child actors do not replicate properly to clients when their parent blueprint is nativized. Regression?: Yes This did not occur in 4.20.3 See also [Link Removed] ...

Datasmith & mikktspace tangent cause entities to glow with lightmaps

UE - Editor - Content Pipeline - Datasmith - Exporters - Feb 22, 2019

The steps above are reduced to their simplest expression.  I appears that several customers complained about lightmap baking resulting in glowing objects.  This typically happens on interior door fr ...

Crash When Adding a Second Vector Parameter to Material Parameter Collection

UE - Graphics Features - Feb 21, 2019

The Editor will crash if you add more than one vector parameter to a Material Parameter Collection.  This works as expected in 4.21 CL# 4753647 Found in 4.22 Preview 2 CL# 5035897 and 4.23 CL# 506 ...

Mobile projects crash with Event Driven Loader disabled

UE - Platform - Mobile - Feb 21, 2019

iOS + Android apps will crash on launch if Event Driven Loader is disabled. Confirmed in 4.23 MAIN at CL 5035898 ...

Failure to sign when packaging for iOS Distribution when using Remote Compile from a code project on Windows

UE - Platform - Mobile - Feb 20, 2019

Packaging for iOS Distribution from Windows using Remote Compile results in a failure during the signing portion. This seems to be caused by a hardcoded "false" for a property that is used to determ ...

Performance issues when a Render target is added to Spectator screen (VR) in a packaged game

UE - Platform - XR - Feb 20, 2019

Performance issues when a Render target is added to Spectator screen (VR) in a packaged game ...

Rotating constraints in PhAT rotates both reference frames

UE - Simulation - Physics - Feb 20, 2019

Rotating constraints in PhAT rotates both reference frames. This behavior was previously enabled by holding ALT while rotating, as indicated by an on screen message in PhAT, but has now become the d ...

Importing through Python fails

UE - Editor - Content Pipeline - Import and Export - Feb 20, 2019

Version 4.21:The script result in popping the Alembic Import windows instead of a silent importThe provided options are ignored by the importer.  Version 4.22: Results in the provided callstack wi ...