I had a glich that made my head ache. Mother was carrying a child and after she put him down shi was walking to do something and all of a sudden she stops and poses like still carrying a baby.

long time i searched an answer from the net. In the end I solved the problem, by taking the whole family, and moved them to another lokation. The broblem wanished like a magic =)

You could have also reset the mother, that probably would have fixed it.