I've had the horse on top of the boat so many times and it won't get inside the boat. I assume this mod is broken now?

I've had the horse on top of the boat so many times and it won't get inside the boat. I assume this mod is broken now?

It isn't broken, it works for me, you have to slide the horse from sides, if its just chilling on the top of the boat thats not the right way to put your horse here