Return of Reckoning

Hi
perhaps somebody can help:
since the last patch my sorc cant join scs. I tried with other chars, no problem ( same addons, same guild ). But my sorc still crashes. Sc pops up - klick 'join' - loading screen - crash to character menu, play button grey and I have to restart the whole game. Once the game chrashed completly. After re-login i am back at binding point.
I tried different scs, different places... nothing.

try leaving your guild on that character

yep... great. Left guild, joined sc -> worked. After rejoining guild everthing was fine thx