Horses of Hoofprint Bay: How Do I Load a Horse in the Trailer?
Short answer
Suggested fix (unconfirmed): Choose the horse you want to enter in the competition to automatically load it into the trailer.
The problem
I've got my first horse ready for competition and bought the parking lot. It says the trailer holds two horses, but how do I actually get the horse in the trailer?
No confirmed fix yet. Players suggest: if you have too many problems in the second competition you can enable auto-jump, but beware that your pace still has to be right!
Suggested fix (unconfirmed): Upgrade your stable so you have two or more groups of horses. Then, switch the horses between groups using the "manage" option for each horse.
Suggested fix (unconfirmed): Separate mares and stallions into different stable groups by using the "Manage" button or by clicking and dragging the horses. Alternatively, geld your stallions.