Our Movi XL failed on a production very badly. On the boot-up, the roll axis and tilt was freaking out; turning around their own axis. We tried the default settings, tried a different controller (Futaba), changed cables, updated to the beta firmware but it didn't help. This gimbal was working perfectly the previous day, and nothing has been touched. Today I tried resetting the settings through "MONITOR -TERMINAL - DEFAULT CONFIG and then REBOOT CONTROLLER" , and it was back again, started to work as it should. On the production day we had to move to the back-up gimbal but, we lost quite a time that day. So I think this shows that, gyros lost their calibration somehow and thus acting weird. Our small Movi's never had this kind of problem over 4 years. The Movi XL is more serious tool for bigger productions and this unpredictable failure was a nightmare and our reliability on Movi XL is shaken unfortunately. If you are a Movi XL owner, just note that resetting the settings thing. It might save the day.