The following diagnostic is generating:
NOL #{PrefixNum}: The program doesn't automate the limitation of post-2020 net operating losses to 80% of taxable income, before taking into account any NOL deduction. You must override the amount of post-2020 NOL carryforward absorbed this year so it does not exceed the 80% of taxable income limit.
Solution:
On detail screen 15 in the 'Carryover absorbed in 2019 [O] (-1 if zero)' line, make an entry to override the program calculation for the amount of post-2017 NOL carryover absorbed in the current year, reported on Schedule 1, Other Income. Enter -1 if zero. This entry is required when the amount of a post-2017 NOL exceeds 80% of taxable income, before taking into account any NOL deduction. See IRS Publication 536 and Form 1045 instructions for more information. If ignored this diagnostic will not prevent e-file.