I have the same error -2022, taxes due, 2 W2s, 2 1099-Rs - one 1099 has withholding, one does not. Very small additional medicare (<$25). 

I saw on a different thread from a few years ago that with multiple W2s for the same person, the 8959 calculation can get messed up and not feed correctly to the 1040 - but I calculated all numbers there - the medicare withheld on total wages is correct, and additional medicare flows to schedule 2 & 1040 appropriately. 

I also found this older article online: https://www.thomsonreuters.com/en-us/help/ultratax-cs/1040/1040-e-file-errors/f1040-034-07.html