When the particle system manager is enabled particle system components will always tick in start physics

Rendering - Cascade - May 24, 2019

The particle manager only accounts for the particle system component's attach parent's EndTickGroup. When setting the tick group through the actor component the TickGroup is set instead of the EndTi ...

Niagara Crash After Adding More Than 20 Emitters to a System

Rendering - Niagara - May 24, 2019

The Editor will crash after adding more than 20 Emitters to a system. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6599617 ...

Deleting elements from TMap Struct in actor blueprint editor causes Crash

Tools - Slate - May 24, 2019

Deleting elements from TMap Struct in the Actor Blueprint Editor (specifically, deleting elements from them) causes Unreal to crash ...

Crash when Deleting Variable from Blueprint Struct

Gameplay - May 23, 2019

The Editor will crash when attempting to delete a variable from a Blueprint struct. This crash does not seem to happen if save the map with the actor in it. ...

Float values are changed slightly in blueprints

Tools - Slate - May 23, 2019

Some float values appear to be slightly altered when they are input into a float field in blueprints. For example 2.6 will be changed to 2.599999. Regression: This did not appear to occur in the 4 ...

RenderDoc plugin crash exiting

Rendering - RHI - May 23, 2019

Vive - Motion Controller Component - Temporal AA Regression

Virtual Reality - May 22, 2019

In 4.22, temporal AA rendering artifacts can be seen on MotionControllerComponent attachments. Other AA methods look to be working without artifacts. Not seen with Oculus Workaround: Set "Disa ...

Crash When Trying to Find a Blueprint Class with Niagara Particles

Rendering - Niagara - May 22, 2019

Crash When Trying to Find a Blueprint Class with Niagara Particles Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6599617 ...

Curve Editor in CameraAnim and Matinee does not display anything in UE4.22

Tools - May 22, 2019

The Curve Editor appears black and doesn't show any information or data. This is a regression from 4.21.2 (CL-4753647) where the Curve Editor functioned as expected. This was reported and tested in ...