David, I know you aren't a novice so pardon me if this sounds accusatory, but have you checked those particular settings to see if they were flagged as SAFE? Just a thought...
I haven't checked anything out yet, just what I saw at the last show. Hopefully I can get the mixer out later today and see what's up in the light of day. We've had a cold spell here in Texas that we are not used to, so I haven't done anything yet. I was hoping someone had had a similar problem and that would give me a direction. I have received several directions from the comments here, and will check all of those things out when I get into it. I don't have a warehouse to work in, so I am at the mercy of mother nature. I only use my truck for sound work, so it stays loaded between shows. I have to unload the entire truck to get back to the mixer, as it goes in first. the first thing I'll do is turn it on and see if the restart gets me back to where I want to be, maybe I inadvertently, in the dark club, pushed a button by mistake and went to a screen I did not recognize. I saw about 6 scenes all with the same name, and that was not how it is supposed to be. At a previous show I opened a scene I commonly used and it had changed. So evidently at the show before that I saved something improperly, or did the mixer malfunction? That is the question I have not yet been able to answer.