Couch co-op unique stash tab

Unique stash tab not working properly. The player that accesses the unique stash tab fisrt after launching the game can use it once. Afterwards if the other player accesses the stash it shows the unique stash tab as a blank tab. Same applies to guild stash unique tab.

To go around this the game has to be relaunched each time the player that did not open the stash first wishes to access the unique stash tab.