Most likely, most people know the tradeshop one, it sometimes doesn't give all the items to to other player, got me into a lot of trouble, that one. People ganged up on me. I don't type /ignore that fast ._.
Also, the /changeleader command,, it said that the coop leader didn't have enough permission to change it ._.
If on org, make a sell shop selling Air for 1$ If on net, make a trade shop doing the same thing, but for Air as the buying item.
Whenever I do the command "/homes" I am teleported to my home as usual, except everything is invisible except for mobs and particles. When I re-log, my island returns to normal...