After going a bit more in depth it seems that apple disabled the direction measurement for Iphone 14 family. You can check it by reading this function's return value: NISession.deviceCapabilities.supportsDirectionMeasurement I still don't know if it is a hw change or it is something in the sw that can be resolved.

Dear Alexandre, I have exactly the same problem with iphone 14 pro. Please inform me if you find any other information. Best, Mohammad