After being rejected with nine errors, I reviewed all EINs via 'Forms' and found one EIN error.
I re-submitted, and the return was rejected .... with a message about 7 errors.
Reviewed via 'Forms' again and reentered a couple EINs as an experiment.
I re-submitted.......and now the return has been accepted and no message about errors of any kind.
My guesses are: (1) IRS and/or Intuit systems overwhelmed; (2) IRS database api error which is now fixed; (3) there was one error in the original submission but the error report gave everything that was manually entered.
Note: state submission was initially rejected, but guessing that was due to IRS rejection
