We have a Windows Server 2019 instance that we use as a Remote Desktop server. Until today, people could print to PDF. Suddenly today the Print button Preferences button, and options are greyed out and cannot be clicked. Someone online suggested removing and reinstalling the Microsoft Print to PDF printer. I was able to remove it using Device Manager, but when I try to reinstall it (manually adding a printer, selecting PORTPROMPT: (Local Port) as the port, and the Microsoft Print to PDF driver), I get an error: "Unable to install printer. The handle is invalid." I uninstalled some recently installed updates (a newer version of KB4598230 and then KB4598230), but that didn't help. We also have OneNote installed on the computer and printing to that doesn't work either (same greyed out Print button). Regular physical printers do work. I can't find anything helpful online. SFC /ScanNow didn't find any issues.
Thoughts?

