I did reproduce the error, but instead of staying there,some combination of taking a screenshot, pausing the game, and changing speed meant that instead of hanging, the keg slowly went down the return pipe.
When I was experiencing the error, other pieces would collide with it and form a junk piece which would also hang in that spot. However, as I said the error did not reproduce and the level completed and I was able to get to the end of the game! I did include a screenshot of the hanging keg just before it began to resume movement.
That is wild! This is definitely the first time I've seen this or anything like this happen... even weirder that it resolved itself after some fiddling! Thanks for getting a screenshot, I'll certainly keep an eye out for this elusive bug...
I'm glad that you made it to the end of the game, and hopefully this bug didn't sour your experience too much. Thank you for playing and taking the time to report the bug, it means a lot to me!
