This version adds an update script to search for new versions on enabling the plugin (Note: this is a beta feature and may not work correctly.)
I have discovered that if you type /hat to set any held item as ur hat then it didn't remove the item from the inventory causing it to dupe it.
I recommend updating to this new version for the patch as any other version has this bug(v0.2 and below)
We are also updating our resource pack for the plugin on GitHub so if there is no updates here then we are focusing on updating the resource pack.