The Rein is not tied correctly in my hand when I bind a mob with the skin I use

I'm actually using this Story Mode skin that's on the marketplace. When I try to tie my horse's rein, the rein is incorrectly placed in my hand, then I did a test with another Character Creator skin to see if it has the same situation but the hand of my character creator skin is not correctly placed. rein when I tie my tame horse. I hope they fix this bug.