I realized this for the first time today when I hopped on my Windborne Velocidrake and the camera went way too far up for some reason. I then came here and found this post, so here I am…posting that I am also experiencing this bug as well.
I have the same problem, any mounts that use that skeleton model has this bug like the K’arrok, plus mounts that use the boar skeleton model has this issue too and the Mecha-mogul mount is 2D now, like made of paper.
The Direhorns use the boars skeleton model, this issue is attached to the skeleton model ( test any boar mount and you will see the same problem), like the velocidrake that use the same model the Ka’rrocs use.