I have this situation too. TurboTax Deluxe, download/desktop version. Won't let me e-file unless I take out my Schedule C. The software didn't tell me it was a problem with Schedule C, I just guessed then found this thread. So I 'll wait until after 1/29, it looks like from this thread. But also what ticks me off is that I subscribed to the Advantage plan that's supposed to let me have support but that's not available either. We're left guessing for ourselves with no definitive answers. Just let us know what's up. So what happens if 1/29 comes & goes and this is still a problem???
