1: Heads are no Toys

2:Dont move a Playerhead untill Backup or restard
3:Dont wear the heads untill restard/Backup or in case you could die and not if you relog
4:Dont put them into a Enderchest
5:If you have a playerhead in your inventory it is possible that the glitch too after you get killed by a player cuz the plugin thinks its a double drop
So just make a showchase or a chest if you wanna trade them and DONT move them anyways.