Arrow dropping while using crossbow on a horse forward

Going forward on a horse, using the crossbow make the arrow hit you or horse, then drop on the ground.

 

What I expected to happen was...:
 On the video, we see the character shooting toward the chickens while using a crossbow, moving forward with a horse, the arrow is supposed to hit the target or at least going forward.

What actually happened was...:
 The arrow hits the character/horse, which make the arrow drop on the ground instead.

Steps to Reproduce:
 Spawning target;

Spawning horse for adopting it;

Getting on the horse;

Load the crossbow;

Aiming toward the target and shoot while going forward, still on the horse.