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dev needs to fix that so people cant hard lock progress (maybe make Lv 1 part free if theres none of that part placed) (right now the hard reset button is broken too)
you can still play though I think
if you open the drill mechanic, at the top of the window it says MECHANIC and an arrow ">" and three underscores _ _ _
you have 3 garages for miner machines, that arrow ">" lets you switch between them. the other two machines should have the body still there