I've just started playing and I've hit a bizarre bug.
I'm at about day 40. Suddenly, every time I visit or interact with the fisherman's hut, a 'purpler with potatoes' dish disappears from my inventory. It doesn't seem to happen at any other location that I can determine, and only affects that one item.
I think the last event I had before it began was the piggyback argument. I don't know if it started before or after that. This is also shortly after I discovered Fisk's true identity. Version 7.10, Linux.