I understand that you haven’t seen too many issues, that’s good. I can confirm that the existing camera has failed a few supervision attempts recently, so it is still experiencing some hiccups.
Additionally, these aren’t just my own recommendations.
A minimum of 66% Normalized Wireless Signal Strength (NWSS) is recommended for video devices.
That’s Alarm.com’s stated minimum requirement to ensure a good connection. Your current camera is hovering around 40%. It is the very first thing I would recommend addressing if you are seeing difficulty connecting a camera, since all other troubleshooting would be impacted by it.
You can try the setup process on the Alarm.com website instead first, often error messages are longer than they are in the app, sometimes more specific on the web browser using a laptop or pc which may help illuminate where it is failing to connect.
If you haven’t already, a successful factory reset of that V724 camera that won’t connect would be recommended as a next step. Does it behave differently after a reset?