If you have double checked the employer ID you entered for each W-2 and the amounts on box 1 of the W-2 especially and all other boxes agree with the amounts you entered first. Maybe you have done so, then there could be other issues causing the rejection.
1. Could the W-2 you are using have been corrected or are you using a corrected W-2 and the IRS isn't using the correct info? Quite often the W-2 has a box on top that is to be checked if the W-2 is corrected. You must contact each employer to verify if there were corrections made and ascertain that you are inputting the corrected amount.
2. You mention multiple W-2s. Is it possible that you are missing one? You are the only person who can determine this. List every place you worked during 2019 and make sure you have a W-2 entered for each of them. Remember: Since you are on what is called a cash basis (taxable when you get the money/check) it is possible that a job you left at the end of the year 2018 paid you some of your salary in 2019 and therefore sent you a W-2. Contact anyplace where you worked at the end of 2018 or during 2019 to be sure you have all of your W-2s.
I can't think of any other reasons you are getting this error message.
