I was using QuickBooks Desktop 2020 (Windows version)-not Mac.  I did all the updates, which showed that I was totally up to date.  I still couldn't print out the one 1099-NEC that I needed to print.  I could print the 1096 transmittal with no problem.  I decided to skirt the problem after having wasted so much time by making a dummy client in the Desktop 2021 version with the information needed for the 1099.  But thanks to all for the suggested help.