I tried to send next version of app in to review and got this error message (You must choose a price tier in Pricing). Never see it before and for sure price tier was set, because it's not a first version of the app. And even more strange it worked for me yesterday's morning.
Unfortunately I can't even change it in Pricing & Availability - selector is not clickable (tried in different browsers including Safari). I guess it's some problem with itunesconnect in general and it will be fixed soon but would glad if combody could confirm this.