This error is not a game-breaking bug. It appeared because the Custom Shaders Patch (CSP) didn't initially recognize the new version number "1.16.4". The game itself works perfectly.
If you find that the game fails to launch, it is often not the base 1.16.4 version, but a corrupted mod or faulty CSP installation.
Make sure you have the Ultimate Edition, as this includes all DLCs and is the most mod-friendly version.
If you are searching for because your game won't launch or crashes, the most reliable solution is to use Steam's beta branch system.
Sim Racing Tech Hub Reading Time: 8 minutes
The Steam Deck is a fantastic device for sim racing on the go, but getting Assetto Corsa to run smoothly requires some specific tweaks. Here is a step-by-step guide to get your v1.16.4 install up and running.
To ensure a flawless execution of the simulation, you must follow the correct digital distribution pipeline rather than unreliable third-party zip files. 1. The Legitimate Installation Path