Using a Blackmagic UltraStudio Recorder 3G.
Recently updated to Ventura (macOS 13.3). While it works ok outside of Magic, the Blackmagic device is no longer available as a source in Magic. Uninstalled/reinstalled Blackmagic drivers with no effect.
This was working ok on macOS 12.
Tested in 2.32b1 and 2.32. This on an M1 MacBook Pro.
Blackmagic Video Sources Broken in macOS 13.3
Re: Blackmagic Video Sources Broken in macOS 13.3
Note that Black Syphon is a workaround, although it seems like frames may be dropping with that approach. (Update: frame drops may have been due to unrelated settings; will do further testing.)