@Noc If its manually breeding the game will stop you saying theres no room, if its pasture breeding the foals "escape" aka the game puts them into FR if you have no room in a stable and you can't retrieve them
Man if I didn't like so many of my foals I'd release them all and start all over and never rate horses I got off that rule which I should have kept from the beginning but maybe I will anyway I'm not sure some have interesting colors. It's hard to choose.
if they breed in the pasture it'll say the foal escaped, basically its like dead gone yknow but if youre breeding them in the breedinf center if you run out of room it won't let you breed anymore