Just invited someone to join me on an RB and it then proceeded to add both of us 3 times as active players. Wouldn't let me invite a third, so I reloaded. Then upon inviting a third, it added all 3 of us 3 times and is now showing as 9 active players. Will be very annoying to have to reload between inviting players every time.
If we all get triple loot though, everything is forgiven.