Just letting you know that HTML5 doesn’t run when using mobile rendering settings when you create a project. I tried using the default map in a blank project and it just wound up being a black screen until I set the rendering options to match the Desktop Rendering settings and repackaging it.
It seems to be working fine now with both the default desktop and mobile graphics settings. I’m guessing that it was just a problem with packaging or deployment settings where it wasn’t finding the starting map. I’ll let you know if it comes up again.