This is happening to me in single player and online. But only on the rf supercross tracks. All other tracks work. Any idea?

My game keeps crashing when I try to load any of the tracks from this series. It gets to "loading bikes" then just closes out. Any idea what is going on??

What am i doing wrong? When i try to open any of the tracks in game, it gets to "loading bikes" in the top left, then the game crashes. I downloaded the object pack and the track. Snapshot is from 2-21

Where can I find the PSD? Want to put numbers on it

how do we get tracks past round 12? there is no link for them and i cant find them.