Mobs frozen in water

I've raised this before, but it is now the biggest issue I have with the game. Passive mobs are always stuck in water, once they find it. In my survival games, all mobs are now stuck in water, none on land. Sheep cannot eat so won't regrow wool and chickens lay one egg that sinks but won't hatch another until presumably they find grass to eat. Cows and pigs also stuck.