HD Export
In my investigations, I've found that at the moment, you can't export HD footage from the Snapchat App to your phone. What this means is that you're limited to SD footage, at the framerate of 29.97.
While you can certainly see the HD footage within the Snapchat App, only the SD currently exports for download.
I've reached out to Snapchat and they're aware of the bug, so I'll update this once it's resolved.
