I can load every track but now when I click to drive the game crashes to desktop, doesn't matter if I use modded or vanilla content.
Are you using Single Player? I have an similar behavior (AMS freezes) 9 out 10 times when I try to enter the track. If I start an Multiplayer LAN race with AI, it works every time. Maybe it helps.
The old DynHUD caused issues like this after a Windows Update. Make sure the 'Enable DynHUD' box is unticked and use the games new default HUD to see if that gets rid of the problem.