Niagara Ribbons using Two Sided materials are incorrectly lit

UE - Niagara - Apr 15, 2019

Two Sided materials are lit incorrectly on Niagara ribbons. The sides will be flipped of how they should be. ...

Streaming Multiple Instances of the Same Landscape Actor All Have the Same GUID

UE - LD & Modeling - Terrain - Landscape - Apr 15, 2019

If a level contains a landscape actor, and if you stream multiple instances of that level into your map, you will get errors in the message log that the landscape actors have the same GUID. Found i ...

Editor Crash While Using "Snap to Floor" Shortcut on Some Foliage Instance.

UE - World Creation - Worldbuilding Tools - Foliage - Apr 15, 2019

When pressing the End key to have a foliage mesh "snap to floor/surface" the editor will crash. Found in 4.21 CL# 4753647, 4.22 CL# 5660361, and 4.23 CL# 5898046 ...

ARKit - ARKitCameraMaterial crash

UE - Platform - XR - Apr 12, 2019

Spawning an object with ARKitCameraMaterial will now crash the app. Tested with 2nd Gen iPad Pro (A1701) Verified in 4.23 MAIN @ CL 5806859 (Needed to install from IPA) ...

Character standing on physics object causes severe glitches

UE - Simulation - Physics - Apr 12, 2019

Trying to stand on an object with physics enabled using the default third person template causes some very weird behavior. The object and character will jitter wildly and launch either one far away. ...

Runtime Errors appearing in Sequencer if fixed frame rate is set in projects settings

UE - Anim - Sequencer - Apr 12, 2019

This ensure happens only when the Start and End of the sequence is set in the "neigborhood" of the keyframe and only if the project framerate is to be Fixed on 60FPS. If you for example play the who ...

Inserting before a FSlateImageRun twice will cause crash

UE - Editor - UI Systems - Apr 12, 2019

Optimization Viewmodes are not visible when Android Preview is enabled

UE - Platform - Mobile - Apr 11, 2019

A user has reported that the Optimization Viewmodes menu does not appear with any options when the Preview Rendering Level is set to Android ES2 or ES3.1. Regression?: Yes This did not occur in 4.2 ...