Spaghetti printing while printing benchy

I have trouble with black/white filaments but not orange.
Does anyone have a clue what is going on? I have an X1C w/ AMS and have no idea how to troubleshoot.

Are the black and white filaments Bambu Lab basic PLA ?

I’ve that even with the BL official filaments that I’ll often need to adjust nozzle temps, aux fan speed, layer hight and print speed so they print nicely

Lots of stringing can also be an indication that the filament has absorbed moisture and needs to be dried out