Arnao, I checked the files you posted to check. I did find a GP79 mft file, deleted it. Re-installed .01b and tracks still locked with same errors.
I did something different this time. About 3/4's of the way across the track loading bar it always stops and I can find the error boxes, but this time I got the wild idea to hit escape button, the loading bar moved a bit, I hit the escape button about a dozen more times and the loading bar advanced each time. The track finally loaded. the Alfa finally loaded. My AI in their cars were just gray boxes, with transparent wheels.
I like the FFB, feels pretty good. Only took a lap or two on Jarama, then went to a VLM track Sebring, it took 15 escape button hits, track loaded and Alfa came up. Again I was racing semi-transparent ice cream trucks.
I think I remember reading something similar experience in the Maserati release thread, I think I will check thru that topic.