: Ensure all DLCs are actually enabled. In Steam, go to Properties > DLC and make sure every box is checked.

Common scenarios that trigger this:

The "Load failed: The downloadable content is missing" error in (Classic or Definitive Edition)

Q: What if I'm still experiencing issues after trying the above steps? A: Contact 2K Games support for further assistance or check platform-specific issues.

If you are on the Epic Games Store or GOG:

: If you just installed the game, it might still be finishing background downloads even if you can play the first chapter. Wait about 10 minutes and restart the game.