Unreal Engine Issues

Niagara compile error : Select Position from Array

A similar node, Select Vector From Array, does not have this problem. The difference between the two seems to be whether or not Required is checked in the input node's exposure options. ...

Project packaged on Windows for Linux crashes after exiting on Linux

I noticed this after packaging multiple samples projects on Windows for Linux and running them on my Linux machine. The project exited cleanly, but there was a crash and callstack generated in the ...

Failed to package for IOS on PC with BuildGraph

Cannot build a project containing a UFUNCTION that takes a pointer to a deprecated component as a parameter

If a UFUNCTION takes a pointer to a component as a parameter, the project cannot be built if the component's class is marked as deprecated. The error message that is provided states that the propert ...

Actor corruption due to Hierarchy broken after load

We recently hit a situation where some actors would suddenly teleport across the map when they were modified in the editor. We figured out that the AttachParent of some actors got reset on editor l ...

Transparency applied through widget animations do not work on 3D Widgets

If the user creates a widget with an animation that fades the widget out. This effect will not carry over into a 3D widget. The 3D widget goes directly from 1 to 0 or visa versa. ...

Adding a UMG widget to the viewport twice results in a crash.

Attempting to add the same widget to the viewport twice will result in an assertion and crash. ...

Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled

Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled User was able to workaround the issue by replacing Audio::FAudioCaptureAndroidStream::CloseStream() wi ...

Output warning log message for loading source texture of paper2D in Editor.

Outputs a warning log for loading source texture when Papaer2D is loaded in Editor.  This may be due to a conflict post load of Paper2D and load source texture.  The warning log is output only in  ...

Blueprint functions with nested structs referencing UDataAssets generate errors if root not passed by value.

The source of the error appears to be a stray DefaultValue="None" that's contained within the inner "Test_Nested_TestContainer" split pin (copy/paste the node to notepad to see this). If you refresh ...