Double check by searching form 7206 and then trying to open each instance. If it asks to creat a new form, skip to the next. Keep the form that’s associated with your legitimate business where you want it to be connected. If you find a second form while doing this, delete it. You then might try to immediately e-file.
If that still doesn’t work, my guess is that it’s regenerating another ghost form. The only thing I could think that might fix it is going back into the interview into that section and checking the responses to make sure there’s no indication of self-employed health insurance for that particular business. Then repeat.
