Looks like a software glitch. I downloaded the demo on another computer and it seems to works fine. Maybe something to do with El Capitan upgrade or an issue with the install (even though I had reinstalled once).
If anyone has any tips/recommendations for either Hammer or Rock Hammer boilerplate they’d be appreciated though.
For example, if you use an include like “accordion”, how do you manage the content. I’d assume you just edit that in the “Build” folder …but won’t that just get overwritten when you compile the files again?