Hi! I just got the DLC and downloaded it with the game, both of them version 5.5.2. However, it says the DLC is installed but not compatible with this version (it says i should download a newer one) any help?
Someone else already answered your question, but make sure you've downloaded the latest version of both the base game and the DLC, then restart your PC.
Similarly, please keep all DLC related questions to the DLC page, as this question has been answered a few times in the comment section.