This happens to me to. Actually, it happens when I try to connect ANY app to mfp. It shows that it's connecting to mfp, then loads a blank white screen w/ mfp on the top... and nothing. Even waiting and waiting for something to load - nothing happens. :/
@Amethyst, what phone are you on? I'm using the Samsung 5S, I wonder if that has anything to do with it?
With other apps (such as endomondo) I have to go to endomondo.com on my desktop and then connect to mfp from there. And then it opens a popup for mfp and I can authorize the connecting of accounts.
Does Zenlabs have an online account similar to that, where I can log in to a website that tracks my runs & then connect it to mfp through the web??