Yeah, I do believe the hints are broke. I've got Bomschelle down, and the robots are ready to go, but the mail slot can't be opened from this side. I click hint and it hints to me that the machine needs to be rigged to run on its own, but I already tied the lever with the string and the machine is running. I figured out how to escape of course (the last hint told me) but just wanted to give you the info.