TT says I must Print and Send Required Forms after I e-file... But it won't generate a PDF of the "required" form

I e-filed, but TT is now saying I must print and mail some forms "to the government" to finalize my return.  However, when I hit "Print Required Forms" it says it cannot generate a PDF and I'm stuck.  Suggestions?? Never seen this requirement before. No crypto.  Just W-2 and 1099s.