I’m not the kinda guy who gets how this works, but if it works only if you drop without placing block, put blocks after ONE drop, don’t wait to block your items after dropping everything you want
If they can even take after the item has been blocked by a block try putting them on chess’ and safes
If they had already took it, stay calm and you can record it FAST (To avoid suspicion from the hacker) And try to lure them into talking about hacking or whatever that proofs that they are breaking the rules
After that I think you should contact Pixel Worlds Support? I Don’t know too much, but I hope this thread helps people from getting hacked because I know it must be annoying
Alternative : Quit Pixel Worlds