I am having this issue as well.
In gameplay yesterday, the father Sim unprompted, interrupted one of his infant's sleep, took the infant out of the crib, and placed the had-been-sleeping infant on a playmat, and then walked away. The infant's sleep need was only half full.
The same father Sim interrupted the mother Sim having tummy time with the other infant Sim to then pick that infant Sim up, put that infant Sim in a crib, immediately take that same infant Sim out of the crib, and then walk back to the mother Sim and hand the infant Sim to the mother Sim. I did not command the father Sim at all and find this very frustrating as I was commanding the mother Sim and the father Sim unprompted ruined efforts to teach and care for the infant Sim.
