After you file

I only filed 1099-MISC forms for rent.  I never took their "suggestion" that I use the 1099-NEC form since it did not apply.  I don't know if I follow what you actually did.  Did you file 1099-NEC forms after the MISC forms were rejected that were not Non Employee Compensation?  You may need to refile the 1099-NEC and mark them as "corrected"  with 0.00's.   This whole rejection thing has caused people so much trouble and uncertainty when we were doing things the right way.