Has anyone found that villagers often "hop" on one foot along the dam after they've finished studying the strange plant next to it and have decided to go into the field? I've seen that a few times now. I had four of them doing it at the same time once.

I've also seen some of them going off the "wrong" end when diving into the pool and they stay there, sort of walking in the air as though they were trying to jump onto the strange black plant next to the waterfall but they don't get anywhere and I have to rescue them.