Can the KiteDemo be edited at all? I'm getting empty levels

For some reason this doesn’t seem to do anything for me. I’ve double-clicked on everything in list of levels, and nothing happens.

Not sure if it’s related, but I also get an error when I try “launching”–I can “play” just fine however. I’ve tried on two different machines which meet target specs (CPU: 6 core @4.5Ghz, Ram 64Gb) except for the GPU, which is only a GTX 670–the other using two “cross-fired” AMD HD 7950s.

Any ideas? Thanks.