I have a P1P that’s about a month old. Today I changed to a .80mm nozzle and then I changed back to the .40mm nozzle. In Bambu Studio when I went to change back to the .40mm it’s not showing up in the list. When I click on the gear icon for the printer under the P1P the .40mm nozzle is checked. I also tried an new 0.40mm nozzle.
There isn’t a 0.40mm in the drop down menu.