My save corrupted so I started again, and had read about the turn based. It worked but I had made the wrong item, so reloaded and tried again but that only worked once.

I put the mould in, then ore, and then pull lever to go down. When it bugs out the hammer comes down but the platform doesn't drop. Save/reload, restarting program, traveling out and back, and coming back later in the story don't make a difference - I can eject the mould and drop the hammer, or put 2nd ore in if it bugged out on the first, but it's just permanently stuck.