V. 4.75 is horrible. Like a lot of people I get "Uh oh! Something went wrong. Tap to retry." Taping does not help. Clearing cache does not help. Restarting my phone does not help. I wish I could rollback to the previous version. The security system isn't very helpful if the App doesn't work. I have 10 days before I will need to return the system back to Costco. Hopefully Lorex will have fixed this major problem before then.