Please use this thread going forward: [HR] Horse/Foals refuse to play with Ball | EA Forums - 12291052
I also had this problem as well and my game is modded but I also noticed that even if there's more then enough space it seems like some of the colors the ball comes in also cause them to not play with it, I had a newborn foal that received the playfull trait which meant she wanted to play more then other horses and since I couldnt get her to play with the ball she was tense all the time and I found that the red and blue color and the soccer ball color worked for me when replacing the ball in case anyone else is having this problem as well
I've tested the new ball theory in my game today after seeing it on this discussion thread.
I saw the tip on there from @twistedstitch and my horse is happily playing with the new ball whether she's directed to or not. Before I replaced it she stopped playing with it and refused all instructions.
