On Minecraft Multiplayer, specifically Minecraft Servers, I am unable to open a Shulker Box if another user already opened it before me. 

To reproduce this, simply go into any server with two people in this snapshot as a version, place a shulker box and ask the other person to open it, after the person opens it, try to open it.

This issue started on 20w10a, im not sure about the versions before.