in Greenshade there is quest that cause the guild trader to split into two instance guild traders. "Traders united" owns the none quest which is us and "weapons trader" owns the finished quest. considering the amount of gold put into these blind bids when a guild wins it should have won the trader no matter which instance the people visiting are in

another issue with guild trader permissions is that if someone has permission to sell in store then that permission is revoked then that persons previously listed items remain rather than being sent back to them as it should be.