I am unable to train the horse I bought last night. Horses were fed yesterday so that is not the issue but whenever I click the train button the "Riders need to be paid" message appears.
However, it is a level 1 horse assigned to a level 1 rider (Paid yesterday) and the only unpaid rider listed in Riders lounge is level 9.
It has happened before and the solution was to pay unpaid riders but I don't understand why this is happening.
Horse: https://horseeden.com/horse.php?id=12903948
Assigned rider: https://horseeden.com/rider.php?id=1282227
Rider that was unpaid: https://horseeden.com/rider.php?id=1302590