A duplication bug/glitch.

In my realm, one of the members has been cheating with a duplicating machine. I really dont like it so i hope you can get rid of this glitch/bug. Its like you press a button, then you open a chest and take the item out. The button sends a signal to a piston pushing the chest. So then when you take the item out, its in your inventory and your chest. I hope you can fix this bug on bedrock edition.