Looks like it works now, although the diagram it generated is pretty watery.
It mis-judged that the "work queue system" is kind of off by itself, when in fact almost all of the important work in the engine goes through the work queue. It did do a good job of at least approximately figuring out the render pipeline stages. Somehow it thinks that "input processing" isn't related to the platform layer, which doesn't make any sense at all.
Seems like a pretty reasonable result for a weekend project, nice work :)