ScreenPosition material node outputs upside down ViewportUV when launching on android

UE - Graphics Features - Aug 28, 2018

ScreenPosition UV upside down on mobile. From User: "I believe the editor mobile preview provides "correct" results, while the mobile device produces upside down results. I ran into this issue w ...

UMG Children broken in Build packaged with Nativization

UE - Gameplay - Blueprint - Aug 28, 2018

Child widgets not visible when packaged with inclusive nativization on. "The problem is that ChildWidget never shows up in the package build, but shows fine in the editor. I've debugged the issue ...

Child Actor components on Clients use the incorrect default values for variables that are not being replicated

UE - Gameplay - Blueprint - Aug 28, 2018

When a Child Actor's class is replicated but the individual variables are not, the individual variables will use the default of the original BP class instead of the defaults that were set in the Chi ...

Copy / Pasting a Widget creates additional Animatable Property transactions in Undo History

UE - Editor - UI Systems - Aug 28, 2018

Copy / Pasting or Duplicating a Widget creates multiple transactions in Undo History. These transactions are labeled "Animatable Property changed.' By default, three Animatable Property changed eve ...

Changing Area Light Settings In Blueprint Causes Crash

OLD - Enterprise - Aug 27, 2018

Changing area light settings in blueprint will Cause a crash. Found in 4.20 CL# 4302132 and 4.21 CL# 4307852 Unable to test in 4.19 due to provided project being in 4.20 ...

FRunnableThread Suspend doesn't work on android

UE - Foundation - Core - Aug 27, 2018

The FRunnableThread::Suspend() function call does not work Android devices Tested in 4.19.2 (CL - 4033788), 4.20.2 (CL - 4302132), 4.21 (CL - 4313833) ...

Nativizing Blueprint fails when struct is not initialized properly

UE - Gameplay - Aug 27, 2018

The PreferredNavData member of NavAgentProperties isn't properly initialized. It is using some constructor that doesn't seem to be valid. This is a regression from 4.19.2 (CL-4033788) as this same s ...

Incorrect Input Index When Removing The Input From Custom Node

UE - Rendering Architecture - Materials - Aug 27, 2018

The input removed the connection points are not re-indexed. So connected 'wires' stay on their places. That causing disconnection of the last wire as well as shift for every node that followed the o ...

Sequencer 3D Trajectories run very slow on deep hierarchies

UE - Anim - Sequencer - Aug 27, 2018

Using a Level Sequence with deep hierarchies causes the FPS to drop to low numbers when they are all selected within the Sequence. This is a regression from 4.19.2 (CL-4033788). This issue was repo ...

Changes to RuntimeFloatCurves do not propagate to child BPs until the Editor is restarted

Tools - Aug 27, 2018

Any changes made to a RuntimeFloatCurve will not be propagated to child Blueprints until the Editor has been restarted. ...