The 1099B is a new worksheet for 2020 so no autofil on the first entry but should do it from then on. Schedule B is not elated to the 1099B.

Yeah, that's the point.  The auto fill is not doing it from then on. At least on the 1099-B input.

I understand that Schedule B is not related to the 1099-B.  I included the observation on Schedule B to prove that Auto Fill is turned on.

Probably have to wait for more updates

OK, here we are with more updates installed and Auto Fill still doesn't work on the 1099-B input

Try this topic:

https://proconnect.intuit.com/community/proseries-tax-discussions/discussion/schedule-d/00/114008

Thanks for the suggestion, but I went through that thread, and a couple of others.  No one is addressing the lack of Auto Fill on the 1099-B Worksheet.