Unimportant: This bug is kinda cool to prank someone but whatever

When I first used the shield for mob battle, I tought it don't appear in my player's hand (like the other reports) until you let your player look down very quick

You can actually see that the shield is very very small (smaller than smoke particle effect)

This bug also happened when you look at the players inventory to look at your player while holding the shield and also third person view

I also tried Trident but it's really invisible