A friend just placed where a house recently collapsed. The original owner's roof-top vendors appeared under the newly placed House's Sign right after my friend managed to place a new house there. She proceeded to customize her new house, but, when finished, the Vendors returned to their original places on the roof. She has no way of disimissing them or using them. She called a GM for help. A GM came one day and told her she was stuck with the old vendors. IS THIS SERIOUSLY THE CASE? It would be a great help to know if anyone has had a similar experience and what they did about it. Thanks.