Same problem after last firmware update to rc-1.9.5-629.
was long printing, at morning that printing finished and when i come to office i saw on the printer display message like “new firmware available, update?”. Yes, update. After that routine finished and printer reboot, i starts new printing. In start sequence, after build platform move down, from mixer side appear very loud clicking, like jammed gear. Printing was susses, but almost one months i listen this loud clicking each start of printing.
some video, clicking at begin and end of video
If need some maintenance, what need to do? if it bug of latest firmware i think reasonable fix it.