Hi there,
We are in the same boat. So far it looks like it's a software glitch Turbotax devs currently working on. Here's the link that could be considered an official response to our 1099-NEC/Schedule C problem:
https://ttlc.intuit.com/community/tax-topics/help/why-can-not-link-my-1099-nec-in-turbotax-online/00...
