Actually good news! I'm not sure what exactly caused it but it seems the mechanical parts of the cross fader somehow got out of alignment. I took the cross fader out, took it apart, put it back together, and put it back in. After I did this, it started working fine again so I'm all good! I was mildly surprised at how easy it was to take it all apart and quickly put it back together.
Anyway, thanks for making an awesome product as always! Cheers!