In my experience the 1810 changes its mind frequently on how it wants to be internally configured. It could be a matter of having it connected to my DAW and when I load a new S14 Song it gets adjusted. I haven't quite figured out what makes it decide to change.
I would want to do some serious testing before I took it live, and/or allow plenty of time to dial it in before the show. I have been embarrassed during tracking sessions when loading a new template and the internal (UC) settings changed and I had to track it down with others waiting.