Fog in Milan is now an old problem .Puzzling. Other than using ABRP for any serious road tripping, I'd take it to the service center, when convenient, and try to see if they have any answers for the odd trip predictions. How's the 3 in the fog around Milan? Does AP help? Haven't driven there in a couple decades, but the fog there was insane!
Probably the Global climate changes altered the fog in Milan too....
Yes we have some bad day with thick fog, but it happens only 4 or 5 days/year.
Up to 20 years ago it was a serious fall/winter problem.
I'd say that the car in Autopilot with fog is superb.