Multiecuscan

Hello, I have fitted a MY21 TFT instrument cluster to my Fiat tipo 2017 model, I have attempted to proxi align it but it fails on IPC every time, all functions on IPC work however I have the usual milage flashing and fault code in BCM for incorrect component installed (proxi issue) and half module/ dasm module missing messages (not fitted to vehicle) why is the proxi not going through, does the vehicle need a custom proxi?
can anyone advise on a solution? Thanks