I was given the Shill job quest to place a gem in Heimskr's house in Whiterun. The problem is that if you have already completed the Stormcloak Rebellion questline, Heimskr's house is gone - it is covered by rubble and does not appear on the map. The Wiki makes note of this and suggests using the console to advance through the quest, IF you are playing on a PC. I am, but while this can "finish" the quest, Vex will not offer you any more jobs when you return to her - the option simply isn't in her dialog. Any suggestions?