Video player no loading in MacOS 15.4.1

on updating to 0.27.6 I'm no longer able to get a video player in macOS 15.4.1 and get the Unknown control: video displayed in the UI. 

I've tested with the example and error is present there also.

I'm using python 3.13.2 on a MacMini M4

No errors are displayed in the terminal or when building the app.