Hello
The Konnected App is an excellent tool for managing & monitoring smart home security devices. However; users occasionally encounter issues with device synchronization, where newly added devices or sensors fail to appear or update correctly within the app. This can be frustrating, especially when trying to set up a seamless smart home experience. 
One potential cause of this issue is a temporary network connectivity problem or a misconfiguration in the app settings. It’s important to ensure that all devices are connected to the same Wi-Fi network and that the app has the necessary permissions to detect and synchronize new devices. 
Additionally; clearing the app’s cache or logging out and back in can sometimes resolve synchronization glitches.
If these steps don’t resolve the issue, it could be helpful to check for firmware or app updates. Outdated software may lead to compatibility problems, so keeping everything up-to-date is essential. I have checked Device Discovery Troubleshooting selenium guide for reference .
If the problem persists, engaging with the Konnected community or reaching out to support can provide additional troubleshooting steps and solutions.
Thank you !