Normal output in MultiViewFilterExample not working?

Hi Brad -- First, thanks for putting together such an incredible framework! I was trying to display both a filtered and unfiltered view at the same time, and looked at MultiViewFilterExample to see how to do this. However, it appears that the normal, unfiltered view (upper left quadrant) shows only the blue background in this example.

I also tried using the GPUImageFilterPipeline seen in the FilterShowcaseExample, and it worked, but would shut off any filters being presented in other views simultaneously. I wonder if these two issues might be connected?