Duplication bug

Your username: JJWD9

In which minigame/server does the bug occur: Skyblock

Detailed description of bug: Left click the crate, hover over an item you want, use shift to move the item into your inventory (the item will go into your inventory for less than half a second before placing itself back in the crate.) then when you swap hands (I use F.) while spamming shift make sure you're in the right inventory slot and just keep spamming this and you'll get the item it'll be a ghost item at first, but changing versions could be used as a duplication glitch.

 

Not 100% sure, I can't be bothered testing if I can dupe or not, it takes to long to find a good method, but it's likely there will be some sort of way to dupe since the skyblock server can be ran on multiple versions of minecraft, But yh ghost items do normally disappear,different versions may be buggy and since some people who switch to older versions and items are renamed differently.