I don't know if this is a bug or not. I recently bought rank 3 in Learning and built the school, and I have someone capable of teaching the kids. I've been having him repeatedly teach the children, but I do not notice their skills going up at all. I don't know if this is a bug, but if it's on purpose, then what's the point of the school? Also, the nursing mothers will come over when I drag the teacher to initiate teaching, but when the teacher begins teaching on his own, the children come but not the nursing parents.

I also turned the game off over night. The river was unobstructed when I logged off and I had a couple people on as "Builders". When I logged back in, it was completely blocked. Shouldn't the builders having been clearing it when the game was turned off just as the farmers keep farming and scientists keep researching?