Ghost block of diamond block for example

[ShadowChansey]

when u stack diamond blocks and have 64 of diamond block inside for example when u open the block GUI and take 64 diamond blocks out and close it without packets diamond block is still there causing a "ghost" block of diamond block it can be a issue for plugins like islands that give island level from placing blocks lets say i place 64 diamond blocks open the UI take diamond blocks out close it without packets so physically the diamond block is still there then stack diamond blocks again by placing it at this point i have 128 diamond blocks placed on island from 64 that counts towards level it also works when ur friend stays inside diamond block GUI

[Esophose]

I would suggest you disable the GUI if people are abusing it like this and you don't want to ban them. There isn't really any way to fix that reliably, and as that requires cheats, I think it's fine to just require the GUI to be disabled.

[Esophose]

I'll consider cancelling the stacked block interaction if the player moves, but disabling the GUI is probably the safer bet still