MK1 owner here.
Whenever I get too adventurous and try to use the inputs on my MD I always end up with a corrupt OS and must do a full wipe and restore. Losing all my work.
This happens with trigger pads and external sound sources. It is as if voltage is leaking from the inputs to the flash memory the system instructions are stored in?
Very crazy behavior. This last time I could not open tempo, global menu or song edit. Basically any window which ‘pops up’.
Empty reset got it back to working perfectly. Until the next time I forget how evil those inputs are.