I am tired of updating this review every time some new problem appears in the app, so I am just starting from scratch with this one. The cameras are great, the app is hot garbage. Just like everybody else here, I am unable to view my Timeline video without getting the "Uh oh" message. Lorex does not appear to admit that there is a problem, based on their copy-and-paste responses to reviews here. I rolled back to v4.7.1 to solve the problem, which clearly means v4.7.5 is the problem. Acknowledge it and fix it, Lorex!! P.S. - You can get the previous version of the app at APK Mirror until Lorex fixes this.