Help skeleton bug!!!

What I expected happened was...
When I go to kill a skeleton and stray and I want to see a skeleton and stray animation pull arrow AI.

What actually happened was...
When skeleton and stray shooting at me,I don't see skeleton and stray pulling arrow animation AI..

Step to reproduce:
1.go and find a skeleton and stray on mcpe.
2.don't kill them if you wanna proof.
3.and when their shoot at you and you will see a skeleton and stray not have animation pulled arrow.