Brown screen, missing animations and black cardbacks after recent patch.

I just got the new patch (have't played in a couple of weeks) and after launching my game, I got a pure brown screen with no menu visible yet i could hear and click menu options even though I couldn't see anything. After reading a few old posts and resetting my user options in the Battle.net launcher, I no longer have the brown screen but instead I have multiple other issues.

I can now only play the game at default medium graphics quality. High settings reintroduced the brown screen problem. All card backs I own apart from the default are blacked out in the selection menu and during matches, I have noticed at least one horrible animation bug so far in Unstable Portal, the summing animations spins a large pink square and leaves a small pink dot on my screen after it's done.

I have tried using the scan and repair option in the launcher options but it finds no errors, I have tried re-installing the game to no avail. Any other ideas?