Not sure what happened if it was a map De-sync, or whichever. It may be client, or it may be server.... Whichever it was my horse tilted me about 140 degrees backwards that I would then dismount tilted to the side the same degree.
https://www.mathsisfun.com/geometry/images/protractor.svg
Right side of the protractor. It was roughly 140 degrees to the right (backwards on avatar when mounted and then aimed right when dismounted). I'm hoping that makes sense. Image is below that I also had a weird mounting happening where the camera was in the body.