Tried posting this in another thread previously where the exact same issue was occuring with another race, but didn't get caught. Have also /bugged and /feedbacked this in game, and still remain unconvinced that those features actually work, so trying this here again.
My poor halfling inquisitor is apparently suffering from height discrimination and being forced to use invisible booster seats on any mounts that are of the horse, gryphon, or pegasus type. Prowlers are ok, perhaps because no one wants to try putting a booster seat on something with claws that size...
Anyway, he already had to get over the embarassment of the lighting bug that turned his hair from red to bright pink a couple months ago (since changed to blond, lest that bug crop up again!), but he's still feeling a bit self-conscious about not being able to sit on his mount properly.
Any chance the booster seat could be removed? 