Deleting animation key values of ParagonKhaimera's 1D BlendSpace while the animation is previewing in Animation Editor will result in Engine crash

Anim - Animation - Jan 30, 2019

Deleting ParagonKhaimera BlendSpace 1D key values while the animation is previewing in Animation Editor will result in Engine crash. ...

Media capture (AJA) doesn't grab UMG widgets in standalone mode.

Enterprise - Jan 29, 2019

Media capture (AJA) doesn't grab UMG widgets in standalone mode. ...

Wheeled vehicle movement is jittery on clients

Physics - Jan 29, 2019

Vehicle movement is jittery on clients. This is most apparent when turning while driving. This was also tested in a packaged game with local multiplayer setup. Regression?: Yes This does not occur ...

Duplicating blueprint instances in a level with added components causes instance to lose component hierarchy

Gameplay - Components - Jan 28, 2019

Duplicating Blueprint Actor instances in a level with added Actor components causes instance to lose component hierarchy. ...

Documentation for Geographically Accurate Sun Positioning contains Incorrect Definition for Longitude and Latitude.

Docs - Jan 28, 2019

Incorrect definitions for Latitude/Longitude in Documentation for Geographically accurate sun positioning.  https://docs.unrealengine.com/en-us/Engine/Rendering/LightingAndShadows/SunPositioner Ex ...

[CrashReport] UE4Editor-UnrealEd!UEditorEngine::CheckForWorldGCLeaks(UWorld *,UPackage *) [EditorServer.cpp:1969]

Tools - Content Browser - Jan 28, 2019

Comment from user in crash group:Created a new level, tried opening it, clicked yes to save existing persistent level and sub-levels, crashed. Generated from CrashReporter ...

Crash When Material is Set to Deferred Decal with Emissive Decal Blend Mode and Forward Shading Enabled

Rendering - Jan 25, 2019

When Forward Shading is enabled, if you create a material with their properties setup with the following:   Material Domain: Deferred Decal - Blend Mode: Translucent - Decal Blend Mode: Emissive T ...

Pause animation does not work at the second preview playback in sequencer

Sequencer - Jan 25, 2019

This behavior can pause well for the first time playback, but it will not work for the second time. Also, as you touch the seek bar you will be able to pause. ...

GPU Particle Initial Color With Distribution Constant Curve Will Not Transition Between Points

Rendering - Cascade - Jan 24, 2019

GPU Particles will only use the first point of an Initial color module with Distribution set to Constant Curve. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.222 CL# 4768593 ...

Assertion When Packaging If an Actor in Level Uses Create Canvas 2D Render Target

Rendering - Jan 23, 2019

An assertion will occur when packaging if an Actor in level uses "Create Canvas 2D Render Target"  Found in 4.20 CL# 4369336, 4.21 CL 4753647 Blocked for testing in main due to crash when placing ...