I found this chain as i have the same exact stuck in loop problem. But also had the same problem Peterpaulmary1 mentions about the EIN transferring from 2020 incorrectly. I started a chat but the issues isn't resolved. I have the least confidence right now in turbotax in my 20 years using it.
https://ttlc.intuit.com/community/taxes/discussion/turbo-tax-premier-transferring-2020-w-2-ein-and-d...
