Same problem with other OS systems after updates.
Although the printer is recognised and works OK as a scanner and printer with the firewall enabled, after updates only the printer is recognised.
Delete any scanner related files in ~/.config, then disable the firewall and restart Kooka, Skanlite or Skanpage and then the scanner is found. Re-enable the firewall and it is working. Rebooted and still working.
For your INFO also works with the latest KaOS testing