Hi, long time not been here and I now have actually a weird problem myself.
I bought a new system recently (AMD 7950X, C12.0.70, Win11, RME UCX, all latest drivers etc) and once in a while, after opening a project and hitting playback, there is no sound at all. not only that, all meters show no signal at all. The workaround is to go to studio setup and hit “reset” on the Audio System page. After that, regular playback.
This can happen even if I had the same project open before and just reopening it, without restarting Cubase. This can also happen after a fresh reboot. It happens with different projects, older ones created on my previous system, and new ones created on the new machine. I cannot identify any pattern at all, it seems to happen randomly once in a while.
To exclude a problem with the audio interface, I tried starting another audio software while Cubase is in mute state, and that has absolutely no problem playing backup audio through the UCX (with ASIO driver).
Audio Connections are configured correctly. I thrashed all preferences, no difference.
No idea anyone? It just happened again, after a fresh start of the system and Cubase… Never had anything like this in twenty years of Cubase.
Not exactly dramatic, sure, but quite annoying if it happens several times a day.
Are you sure that there are no third-party plugins running on your master bus that you have not yet re-activated (such as entering the license number) after you set up your new system? Some plugins offer trial modes that mute the signal after the trial period expired. I trapped into this a couple of times.
I encountered such issues in the past, too, but in those cases you would see signals on your track meters. In my case, there is nothing at all on the track meters in the mixer, complete zero everywhere. The playhead moves, but that is all. No sound, no meters moving, until I reset the audio engine.
I finally solved the problem by completely uninstalling the RME driver (everything RME, to be sure) from the system, then installing it again.
Still remains a mystery why Cubase was the only ASIO host that had problems, but there you go…
and I now have actually a weird problem myself.