I have two multi-state returns ready to e-file. One is a business return, the other an individual return. I got an error message more than once on each of these returns that there was an unexpected error in transmitting to the Intuit servers. When I attempted my last transmission, the individual return listed none of the expected returns on the ready to e-file screen. I have refreshed, checked all suggested issues like size of attachment and selections in profile match selections to e-file. I have logged out and returned to try again. This client has filed up to 20 states a year. Unlike Intuit, I am working this weekend. Now I will have to wait until Tuesday to phone or chat in. I hope it doesn't take an hour to get resolution or the realization that it has to be checked by the "back end".  If ProConnect cannot handle this type of client, I will need to make a change and am open to suggestions.