Graphics Issue with new update

[Servancour]

You need to manually delete the CK2 folder in documents:
My Documents -> Paradox Interactive -> Crusader Kings II

If you have another OS than Windows, look here for its location: http://forum.paradoxplaza.com/forum...rmance-boost-file-locations-DLC-names-numbers

Pretty much this. Make sure to try this as well as a complete re-install of the game at the same time just to be sure. That usually does the trick.

Otherwise, look at updating drivers to make sure they are up to date as well.

 

[Servancour]

Oh right. Missed the Mac part.

Guess you can check so that your OS X is up to date then, to be on the safe side.