Clicking 'Add for Review' for iOS app not working

When I click the Add for Review button, the progress indicator spins for a bit then goes away. There is no error message and nothing appears to have changed. The status still shows as 'Prepare for Submission.'

This is an existing app that already has a current build in the app store and the changes made in this version are pretty small.

Anyone have any ideas what could be happening?

Thanks

Clicking 'Add for Review' for iOS app not working
 
 
Q