MegG1011, I'm having the same issue. It updated, as the little icon now has Ursula front and center. But when I open the app, everything is normal - except that, like you, I can't hit play. I'm on level 6 right now, and it seems odd that this is stuck - I can't proceed unless I'm on level 7, but I can't GET to level 7 unless you let me complete 6.
I have an iPod Touch 5th Gen, iOS 9.3.4. I wonder if this might be part of the problem? If you're rocking an older device, it won't 'update' the right way, thus throwing things like apps off kilter when they update themselves. This IS very frustrating, and I wish I knew what the answer was. I really liked playing this, but if it doesn't get resolved, I'll delete it.