MCC Insider App brings me back to the Store

I play on Xbox, I got an email invitation to join the Halo 4 flight, by Halo Insider Profile is up to date, and I have both the Xbox Insider Hub and Halo: MCC Insider apps installed. I've followed the install instructions to the letter. I've installed, uninstalled, reinstalled and restarted. Despite all of this, every time I attempt to launch the MCC Insider app, I'm taken immediately back to the store page. I click on the box that says, "Launch Game/You own this," and every time I do it just resets the store page.

What am I missing?

EDIT: Fully shut down my Xbox and turned it on to finally find the prompt to updatr my app. Thanks forum friends!

Shouldn't need to wait 10 mins just do a hard reset and that should kick the update into starting