Steps to Reproduce:

1. Grab regular non-attachable items;
2. Use the hotbar selection to swap them in your hand, observe their animation;
3. Grab attachable items;
4. Swap items in your hand and observe the swapping animation again.

Observed Results:
Attachables appear and disappear instantly, completely disregarding the animation that's playing. The item will instantly be replaced by another, go off-screen and pop back up.

Expected Results:
Attachables only disappear once they've gone off-screen, and then swap models at that point.

Screenshots/Videos attached: Yes

Notes: When pairing a regular item with an attachable, the regular item will still follow the correct animation, meaning that it is possible to see two items in your hand at the same time, or none at all.