Verifying Steam files removes your CSP. You must reinstall it.
The "obsolete" error usually occurs because Content Manager or certain Custom Shaders Patch versions don't recognize the small, official updates Kunos occasionally pushes (like the Ferrari eSports event update). CM sees "1.16.4" and, because it's hardcoded to look for "1.16.3," it assumes your game is outdated. The Quick "Changelog" Fix Verifying Steam files removes your CSP
settings in CSP, follow these steps to ensure a clean, high-fidelity setup: CM sees "1
Reinstall CSP directly through the CM interface. This reset fixes most versioning bugs that Steam’s verification might miss. Optimizing for the Future Optimizing for the Future But the real fix
But the real fix was the CSP—Content Manager and the Custom Shaders Patch. The modern CSP versions fought with v1163. They demanded the newer executables. Jax had to find the specific legacy build of the patch, the one that bridged the gap between the old physics engine and the new lighting pipelines.
Ensure it says 1.16.3 . If it doesn't, the Steam verification in Step 1 is mandatory.