E-File is not available because your tax return includes forms that can't be e-filed

I’m an IHSS live-in provider and received two W-2 forms from two different clients. On both forms, Box 1 and Box 2 show $0. When entering them into TurboTax, I selected code II – Medicaid Waiver payments excluded... in Box 12, just like it appears on the W-2 forms, and I entered the amounts shown in Box 12a.

 

I do not qualify for the EITC, so when TurboTax asked “Do you want to add your Medicaid waiver payments to your income for this credit?” I selected No.

 

When I go through the Federal and State review sections, everything checks out with no errors. However, when I reach the final step, my Federal return shows “Not Ready to File.” When I click Change, I get this message:

“E-File is not available because your tax return includes forms that can't be e-filed.”

At first I thought this might be because TurboTax flagged the two W-2s as duplicates (since they have the same EIN), so I tried combining them into a single entry. Unfortunately, I still get the same message and can’t e-file my Federal return.

 

Has anyone run into this before or know what might be causing it?