A few weeks back I bought a used 2021 Fender American Professional II P Bass from the Music Farm in Canton, Ohio through Reverb. When first trying it out, I noticed that the tone knob didn't change the tone at all to the sound. I messaged the seller through the Reverb app and they replied that it was checked out by their tech and it all worked fine when it left their store and that something must have come loose in shipping. Today I took it to my guitar tech and immediately upon removing the pick guard you could see there was never a cap installed onto the tone knob. I know things happen, but hard to believe that it made it through the factory without anyone noticing a part missing. Way to go Fender American Factory.