Can anyone explain why the 'Saving Intergration' always hangs in Data Exchange?

Hi,

It's so frustrating and cannot figure out why at certain points(seems random) that Data Exchange will not save the integration. It just hangs on this screen. Anyone have any clue as to what's going on and is it avoidable? Maybe I'm doing something wrong? Sometimes we can just close and go back in and it works but sometimes that doesn't work. Any insight is appreciated.