If you are experiencing issues with your existing cameras after updating to iOS app version 1.9.0, please look at your camera's log-in information. If the username or password contains multiple words separated by spaces then the app is known to have issues pulling this information properly into the system.
Please delete the existing camera from the app and then log into the camera at it's local IP address through the WiFi Camera Tool
Once you have logged into the camera and selected your browser, navigate to Device Settings > User Settings and change the username and password so that it confirms to the following.
Once this has been completed and the camera has finished rebooting, add the camera back into your hub through the app and the issue should be corrected.