4.12 p3: Crash on Project Startup

Not really sure what Info I can provide here, project took literally AGES to load up (longer than it ever has before!) and I was finally graced with this crash as the shaders finished compiling. There is a landscape in my default level, since the crash is where it is, I imagine that had something to do with it?

Logs Attached.[link text][2]

Project started up just fine second time around. Could be a glitch in the matrix :wink:

Did you see a black cat and then the exact same cat?