I just purchased The Knife of Dunwall on Steam, it updated Dishonored and ran the game. It gives the message that my DLC is in the Missions, but when I go there it's not available for me and grayed out.

When I go back to the store, it says I have already purchased it and gives me the option to "Play Now" when I click it, it takes me to the game, and gives the same message, however it's still not available.

I uninstalled Dishonored, re-installed it and went through the same process. I have restarted and updated Steam as well and nothing seems to be working.

Any Ideas?

ignore this, I am stupid.