I was having the same issue for months, and just fixed mine a second ago!
I had tried the "restart in safe-mode, terminal command" thing (see link below) but was still having issues.
Right as I was trying to finish this post, I went back in and turned off the camera access to a bunch of other apps in my Mac settings, restarted OS, and all of a sudden, everything was working again. I'm not sure what did it, but I had been trying EVERYTHING the last few months until I ran into the "safe mode" post on Reddit:
- Do this step to update to the OLD setting on macs: Did macOS Sonoma 14.1 just remove the ability to use a virtual camera?
- Then uninstall OBS, & reinstall
- Try removing access to all the other video apps in Mac settings ( I had Chrome, Loom, etc. Turned them all off)
- Restart OBS
- Use the OBS settings below as needed.
My stack now is: Sony Remote —> OBS Virtual Camera —> Zoom/Other
Best of luck. They sent us all on a wild goose chase with this combo.