So I went back and compared the HR Block vs TT forms 8615 and also downloaded the 2019 instructions from the IRS website. Both programs compute the form/tax correctly, however, the HR Block form has a typed in overprint on the Qualified Dividends and CG Tax worksheet for lines 8 and 15 which matches the new 2019 IRS instructions (page 3), but the TT version of the form does not. You should NOT over-ride lines 8 and 15 per the form instructions in the TT program, although when I did this it produced a much more favorable tax answer!
I do not know why my TT e-file was rejected but the HR block e-file was accepted when the numbers appeared identical; this form overprint is the only difference I could find. The lack of explanation and/or error checking from TT is frustrating, and I'm very skeptical that the IRS or Covid-19 is to blame when HR block has it right. Hope this helps someone...
