Cubase 12 wierd glitch. Going back in history?

[musicdoc]

Long time Cubase user here. Started around Cubase 3 so not my first rodeo.

Anyways, I'll be working in Cubase 12 doing my thing and then a sudden glitch and it's like I'm going back in my timeline like 10 steps, sequences all of a sudden gone, newly made tracks or plugins vanished and it's like what the heck? I then click through the redo button a bunch of times and everything back but any ideas as to what is triggering?

Happens maybe once every 15/30 minutes so not too easy to duplicate.

Thanks.

[budweiser]

I have an external controler that randomly send midi messages that lower the cubase output volume... it’s not cubase (in my case)...

[musicdoc]

I have an old faderport hooked up. Maybe software getting outdated. Didn't do it in past but maybe. Will troubleshoot some more.