When Assetto Corsa receives a legitimate update (rare now, but possible), the unlocker files get overwritten. You may lose progress, crash on launch, or need to reapply the crack repeatedly.

Many unlockers merely toggle a software switch but do not actually download the gigabytes of high-fidelity textures, audio files, and physics parameters required to run the DLC assets, resulting in immediate game crashes. The Best Way to Get the Full Experience Legitimately