Weird Bow Texture on mcpe Aquatic Update

The bow looks like a piece of §≠!+ when I shoot.

But in 3th Person it looks normal.

The Texture Glich is only on my Divice

(Ipad gen.5)

It startet when i downloadet the Aquatic Update for mcpe.

I let my Friends join my World and on their divices the Bowanimation looks normal.