Unreal Engine Issues

SceneCapture2D Components when referenced on screen by UI widget will cause massive screen flickering in Standalone, Launched or Packaged Game

When a SceneCapture2D actor is added as a Component to a Blueprint actor and the Render Target is assigned to a UI component in the level, the screen flickers at a rapid pace. The effect is slightl ...

Function boolean return nodes often set to true will default to false once saved project is closed/reopened

The new function output booleans within blueprint class actors are not saving intended true/false entries. This issue is a regression. Works in: 4.16.3-3561208 Does not work in: 4.17.1-3586342 and ...

UMG Visibility binding resets to default after closing and reopening project first time

UMG Visibility binding resets to default after closing and reopening project first time. "Get Visibility" on Button click boolean toggle for widget blue print "False" return node value gets automa ...

Callling "Get[AxisMapping]" or adding AxisMapping Event node in blueprint will break code input implementation for that axis mapping

When character input is defined in code, adding a call to the Get[AxisMapping] node in blueprints causes input for the specific mapping to fail. Note: This only affects code based input, Blueprint ...

Niagara Fluids Grid3D_Gas_Explosion causes a crash

Placing Grid3D_Gas_Explosion into a level then packaging the level for windows will crash the packaged project. The package will give an error that it crashed while loading and quit.  This does not ...

Spawnable Skeletal mesh actors will have their Skeletal Mesh Asset shown as None when added to a level sequence

Rect Light Source Creates Black Artifacts When Overlapping a Mesh While Light Shaft Bloom Is Enabled

A black line will appear If a Rect Light is overlapping a mesh while a Directional Light has light shaft bloom enabled. This line will originate from where the edge of the source is overlapping the ...

If a user uses a binding to set the text of a Text widget by using the "Get Text" node on that same widget the editor will crash

The editor crashes when trying to set the text for a text block via a binding a if the text block is trying to set its text by referencing its current text setting. ...

If use with mesh particles or use with niagara mesh particles is checked in the Usage flag of the material and the material domain is set to volume, compile error will occur.

[SM5] /Engine/Private/VolumetricCloud.usf(118,33-53): error X3018: invalid subscript 'VertexId' This is happening in VolumetricCloud.usf, but it seems that I can avoid the error by adding the follow ...

When button style is set to "box" and another widget is added to the via button click the button will lose style settings

When a button's normal style is set to box and another widget is added to this buttons canvas panel when the button is clicked the button loses its image settings. ...