Yeah updating to the latest firmware does nothing for the RedRock Motor issue. I'm still waiting to hear back from Support on my end. Been a lot of back and forth with no solution and now radio silence. Hopefully they're working on a fix or they'll swap out the MoVI's that are having the issues.
Waking this thread from a dead sleep, but I’m having this issue using the Chrosziel CDM-100M motors. Just using 1 motor on focus has no problems. Using 2 causes faults and becomes unresponsive. Any update on the past cases? Were your issues related to Redrock motors only?
Tried CDM100 and Heden, and a bunch of others. In the end we went with Nucleus which doesn't depend on Movi. After a lot of tinkering I concluded it has do with stiff lenses and occasional power drop of the Fiz Unit. I would guess its a hardware problem rather than software.