Was there any resolution to this problem? If so, how was it solved? I have the same issue with my tdi 1/1

My recently acquired viceroy TDS 1/1 has an issue with engaging drive to both the lead and feed screw shafts. Neither are turning although the external side gears are working fine when the tumbler gears are engaged. The gear selector lever doesn’t feel right - it doesn’t want to positively engage to...