[BUG] Visual layering issue with glowing texture features

[Signupsforeverything]

I'm using the backslot mod (https://modrinth.com/mod/backslot-mod).
The bow that's on my characters back is clipping into the back of the head.
It should not be visible.
But it is, because the pixels that are the eyes are drawn behind the back-item.

Bow in hand:

Bow on back: