Today I got 2 event quests to do 'Hero Wanted' - ( I am 99% sure I had completed yesterdays quest ).
I had 2 'Hero Wanted' in star - but think I had one of them for several days.
After completing first scenario 1 quest was completed - the other still active.
After completing second scenario nothing happened.
Deleted quest to get on and get new quest tomorrow :)
A guildie had same problem about a week ago.
