Hi lee dodimead,
You might want to go back to 2.2 and check if there are no errors!
From only this screenshot there's not a lot of info to see but I'd suggest to try again.
With regards,
Rick
Humm, considering that section 2.2 doesn’t really have any steps for you to do, if there’s anything wrong it would have been on the previous section, which is just to create the App.
I’d suggest going back to section 2.1.1 and double-check if you chose the correct template and the correct versions for Studio (Studio Pro 9.5.0 (Template v9.5.1)) in Advance settings.
But honestly, from the screenshot you are showing, it almost looks like you have some sort of pop-up warning covering the actual page. Maybe try it in another browser to see if the issue persist?