The “3” is not relative to the AMS, but rather it is the third filament preset you are using in the print. Have you actually configured the AMS to know what is in A3? As atm it looks like it is set to PLA. Meaning if you check what your options are back at
it probably says A3 is PLA, not PA6-CF… i.e.
Hence why BS can’t “automagically” map the filament preset used in the print job to something loaded in the AMS.
btw, this is not new behaviour to Bambu Studio V2… it is this way in V1 also 