Merchant Archive

This morning I decided to upgrade my tailor shop from a small to a medium. I had three vendors in my old shop (2 NPCs and 1 droid) and they always worked fine. In order to move, I had to create new vendors (this time I chose three NPCs) and delete the ones in my old house. I was able to create the new vendors and even restock them, but now I can't seem to access one of them. I definitely initialized it, but when I try to use the vendor the "Initializing Vendor" window comes up for a few seconds and then just quits, without opening the sales interface. (It also lets me rotate it, which I don't think I should be able to do if it's initialized.) The other two vendors work fine, but of course it's the one with the most expensive merchandise on it that's not working at all. I've tried logging out and back in and nothing changes. So then I logged into my husband's account and took his character over to my shop. Clicked on the vendor that was broken and was able to access it just fine. But then when I tried to use the other two vendors, neither of them would work for his character. Arrgh! What is going on? Is this a known bug or something new? Has anyone else had similar problems?