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

Gameplay - 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. ...

Attached Actor's Scene Components reset to default class values when moved.

Gameplay - May 23, 2019

When attaching a Blueprint CameraActor; who has a child Blueprint component(point light component) to another object in the scene. The Blueprint Actor's Components will reset to default class values ...

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 ...

Ansel Wont Work if the Project is Still Open

Rendering - May 22, 2019

Ansel wont work if the same project is still open while running the packaged version. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6599617 ...

Two Incompatible Object types are able to connect via add array in Blueprint Graph.

Gameplay - May 21, 2019

it is possible to connect two incompatible types to an Array Blueprint function node by connecting the Item pin first.  The type of Array function nodes is determined by the first thing connected t ...

Ribbon particles moving fast are inconsistent in initial position.

Rendering - Cascade - May 21, 2019

The fast-moving ribbon particle trail looks different on the server and client. It looks as though the client was drawing the previous frame. ...

SceneCapture2D Component Show Flags that are Modified in a Blueprint initially are Copied not Referenced

Rendering - May 17, 2019

If you disable show flags in a SceneCapture2D component of a Blueprint, trying to re-enable them in the Blueprint will not update instances in a level. Anything that was left alone will change along ...

Crash: nullptr in FindViewComponentForActor when ActorComponent is attached to Character with Camera Component.

Gameplay - May 17, 2019

Selecting an Actor with a Camera and a C++ inherited Blueprint Component that has sub-components,then compiling the BP component leads to a crash. Upon Debugging the Crash Call Stack: FindViewComp ...