iMac 27" (Retina 5k, 2017) and having the same issue after updating from 13.7.4 to 13.7.5. running "lpinfo -v" gives "bad file descriptor" and when I go to add the printers to my computer, they show nothing under the "select software" pop-up window. Networked and USB local printers are affected. I have even wiped the disk, installed to 13.7.4 and put my files and apps back with a time machine restore and it works, until Apple force installed the 13.7.5 update again over the weekend. I just don't have it in me to spend an entire day wiping, reinstalled, and restoring every few days. My colleague has the same issue on same 2017 27" iMac after his updated this weekend as well. Our computers still show "installed printers" and ppd files but the printer list is blank and we cannot install printers because the software list is blank, even though the driver files are all present.