I added 2 V3 cams and 4 campus subscriptions. Now nothing works!!
Be a bit more descriptive and we can probably find the problem.
Did you assign the newly installed cams to the unassigned Cam Plus Licenses in Account → Services?
Did you try to clear the cache in Account → App Settings, then sign out of the app in Account, close app, force stop app from OS, restart app, sign in, and test?