I recently installed a hardened 0.4mm nozzle. P1S was updated to a hardened 0.4mm nozzle. Bambu Studio shows hardened 0.4mm nozzle is installed in Printer Parts.
After saving filament presets for hardened nozzle, Bambu Studio automatically substitutes to non-hardened nozzle presets when syncing filaments.
It seems that should not happen.