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

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 UE-70343 ...

Datasmith & mikktspace tangent cause entities to glow with lightmaps

Datasmith - 3dsMax - 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 ...

Cannot Undo sublevel actor changes after PIE (play in editor)

Tools - Feb 21, 2019

User cannot undo changes if all of the following circumstances are met:The actor resides in a sublevelThe sublevel's streaming method is set to "Always Loaded"The user Play in editor (while on the m ...

Compile tooltip doesn't state that F7 will compile your blueprint

Gameplay - Blueprint Editor - Feb 21, 2019

Bit of a discoverability thing that would be nice to change. I don't use C++ so I didn't know F7 compiles it, all the wrist movement from clicking that button, think of the RSI!  Oh also the reas ...

Crash When Adding a Second Vector Parameter to Material Parameter Collection

Rendering - 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

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

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

Virtual Reality - 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

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 ...