Fixing the unused pot of acid bug (and getting stuck in the storage room)

[rhicks94]

I had the problem with the refinery entrance. I went to the door when I initially got into the entrance hall, and the tissue stuff was there, but when I made the acid and came back, it was gone but I had a full pot of acid. It was weird though, as soon as I walked into the refinery the screen flashed as though I had solved a puzzle and the pot was empty. I'm playing on Mac, if that means anything. I was wondering about why the game might have "reset", so to speak. Ideas?