I recently obtained a Roku Streaming Stick+ and every app I've tried so far works, except the Mezzmo app. When I open the app on the Roku device, I see the "Loading..." screen...but it never advances, or gives me any sign that it's actually doing anything (i.e. Loading icon moving).

I've uninstalled the app, then reinstalled it, but still had the same effect. It's odd because I have 2 Roku TV's (TCL) that work flawlessly with Mezzmo.

Any help/advice would be appreciated - thanks!