I was having this same issue - in the Self-Employment section as well.. I called Turbo Tax and they said there is an open case from multiple reports of this .. BUT ..
I went back in and rather than *edit* the existing business that was already saved from last year, I deleted that and just added the business again - It only took an extra minute to add the info back in, and I was able to get through and get my taxes filed.
I had been getting SO annoyed!! Tried starting a new return, clearing cache, all the typical stuff - So was pretty happy when this finally worked! -- I hope its helpful for you too!
