So I was hanging out at my lakeside shelter making fish stew and bowls to hold it, when I discovered I couldn't find the bowl I'd just made. I didn't worry too much about it as it was a leaky bowl anyway and had done several other tasks before realizing it and thought i dropped it somewhere accidentally ... but then I came back and made a decent bowl and it was also nowhere to be found.
The only thing that stands out to me as a possible cause is that I had a bowl of soup in my inventory at the time I made the disappearing bowls, perhaps there's some kind of bug associated with holding a bowl of soup while attempting to carve another bowl?