1. You are running an old version of OBS Studio (27.2.3), which is not supported. Update to version 29.1.3 or newer by going to Help -> Check for updates in OBS or by downloading the latest installer from the
downloads page and running it.
Update your plugins, Stream Deck
release notes for 6.1 include OBS Studio plugin update 2.2. That was released March 13th. OBS 29 was released on January 7th. They are on 6.3 now. There's also a newer version of
win-capture-audio.
2. Run updated OBS as Admin. Right click on the OBS shortcut, properties, advanced, check box, ok, apply, ok.
3. Display and Game Capture Sources interfere with each other. Never put them in the same scene (Normal, WATCH PARTY, Diablo and REPLAY).