Articles in a blog page not displaying in WPTouch

I’m trying to use WPTouch. Most of the (static) pages are displaying correctly, but it’s not showing the articles on the “blog” page at all. It just shows an empty template (i.e. header, title, etc – but no articles).

Can anyone explain the process of how WPTouch will try and render a “blog” page? I can’t post a link as it’s a client’s demo site just now and they don’t want it public yet.