In career mode, when I got to Cactus Challenge Event, I can do Road to Ruin, Around the Oasis, and RedLynx Rampage with no problems, but when I try Stormtrooper, Sunrise Dash, or Base Invader tracks they all load fine but 5-20 seconds after starting run I get dialog box (!) Content Not Available: Downloadable Content could not be accessed. Please reconnect storage device if removed. Has anyone else had this issue or know what could be causing it? The tracks aren't downloadable content they are part of the game. I got TU 1 but that did nothing for it. Any help appreciated.