Content Manager is an alternative launcher
It also adds some functions with ''Shader Patch extension'', such as night light, some optimization etc.
There's a free version, (and if you pay you get more functions.)
Since the time so many people asks, we should have made a video... but the versions keep changing, and some things might differ. But anyways.
If content manager is a powerful tool, it is not mandatory to play the game.
Most likely the track isn't in the correct directory
to make sure you need to manually go to the track folder of Assetto Corsa.
(in my screenshot, it's in D drive, but default should be C drive with steam and all)
and within \content\tracks\la_canyons you should see all the kn5 files as listed below (that's all the 3D data of the track)
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