Jumping works for me, however, I have tested more and climbing does cause the same issue, albeit slower to accumulating. I have not been able to cause the horse damage when riding on level ground, yet.
In my experience, this appears to be related to jumping the horses while riding. Seems as though they accrue fall damage that hits when you dismount.
Jumping works for me, however, I have tested more and climbing does cause the same issue, albeit slower to accumulating. I have not been able to cause the horse damage when riding on level ground, yet.