For me, Mezzmo v5 is working fine on Win10 and Android, but there's one change in behavior on Android that I hope will be fixed/changed:

When I'm using Mezzmo on my Android tablet to decide what flick to watch tonight, or maybe to get "Who is that actor?" details, I frequently use Mezzmo's link to IMDb. That link still works, but it used to open as a separate process; now it seems to open within Mezzmo. When I get to the IMDb listing, then click on, say, an actor, it does show me that detail page within IMDb, but here's the problem: When I click back, it takes me all the way back to the Mezzmo listing of my movies. So, if I'm interested in more details about the movie, I have to go thru the process all over again: find the movie in Mezzmo, click the IMDb link, then navigate through the IMDb listing.

This *obviously* isn't a serious bug -- just a behavioral issue that I find really annoying, because in v4 it worked the way I wanted it to...