I have same issue. App crashes on trying to select another cam. I have sent report multiple times thru app but no update or app update.
Uninstalled and reinstalled but no cure.
I also had issue of adding cam. White screen after hitting next button on ready to pair. No barcode.
I cleared cache and data that fixed.
3.5 beta still doesn’t go from 1 camera back to group and then second camera, instead it goes back to the main page.
Your iOS or Android? Android is 2.2.30
The latest beta app for Android is here