After two more rounds of this build, one of the bugs i discovered is when placing the donuts on the spiderwebs, the quantity for the donuts doesn't drop. I've found three donuts in the spider lady's lair in total before placing them on the spiderwebs.
The other bug is the same slimes I was talking about from the previous bug report on #2. I assume you're suppose to fight them, but nothing happens. I didn't have Isabella for these two rounds.