I have just tried to print the test cookie for the SP15 Globe and the Lat/Long lines will not print on a 0.4mm nozzle. (they show as printable in my slicer with a 0.2mm but I don't have one of these).
PrusaSlicer has a setting to detect thin walls. It may have different names in other slicers. I only use 0.4mm nozzles with Prusa MK3/4 style printers.
Thank you for your reply Steve.
I use Bambu slicer. I have just found that if I change the wall generator from 'classic' to 'arachne' then these thin lines will print.
PrusaSlicer has a setting to detect thin walls. It may have different names in other slicers. I only use 0.4mm nozzles with Prusa MK3/4 style printers.