I have 2 network printers. Yesterday, I was able to print just fine to printer A. Today, Photoshop Elements 2020 insists on printing to printer B, no matter what I do. I tell it in the print dialog the correct printer, but it always sends the job to the other printer.
I resorted to printing from Photoshop Elements 2018 (which is still installed), but that is a PITA since some of the editing I am doing is easier with some of the newer features of 2020, so I have to edit on 2020, save the file, close 2020, open 2018, load the file, and then print.
Obviously, the printer is installed correctly, and it is the default printer, but 2020 just refuses to output a print job to it.
Try resetting the preferences file. Go to Edit>Preferences>General tab and click the Reset Preferences on next launch button. This usually fixes printer issues such as this.
If you are printing from the Organizer, you can reset the preferences file by the following. Immediately after launching the program, press Alt+Shift+Ctrl. A message should pop up asking if you want to delete the Settings file. Answer OK.