I think I managed to confuse my Mimeophon somehow:
I clocked it from Marbles t1 with a pattern (e.g. not a steady clock), at a really slow tempo. I was in zone 3 for a while, with a high repeat setting, a little bit of skew, messing with color and halo, and a complex audio rate signal into Flip.
At some point I tried to change zones and it just wouldnāt. Rate still seemed to have an effect, as did all the other controls, but it remained stubbornly in zone 3. (I didnāt have any CV into the Zone input either.)
I unplugged the clock, tried a bunch of things and then after several seconds, it was able to switch.
Any ideas? I just tried to repeat the behavior and couldnāt; zone changes are pretty much immediate.