I bought a Dynavector cart a few years ago and could never understand why my Fozgometer would never read left and right channels not matching no matter the adjustments.
I finally took the cart off and found what you found
The cantilever was installed off center
Sent it to Dynavector USA rep and he agreed and sent me a replacement
Yours is definitely off center and I would ask for a refund or replacement
It will never track to spec or measure correctly
Good luck