App Horizon

Forza Motorsport 4 tuning setup editor

So I’ve been using Horizon to edit tuning files with HxD to change the wheels on cars, it works fine with some cars and some wheels, but it only works with a some types of wheel and a some cars.

I thought I was doing it wrong but it definitely works with some cars so I’m hoping it’s something simple I’ve missed.

Any help or advice appreciated thanks