Hi neighbors! Video connection concerns are often related to wifi, mobile device, or Ring app communication variables. The best first thing to check is your wifi signal strength, or RSSI, which can be found in the Device Health section of your Ring app. Check out our Community post about RSSI for tips on optimizing this signal strength.
Removing and reinstalling the Ring app is a quick way to ensure it is up to date and optimally integrated with your mobile device. As you mentioned the recordings do not display video, please log in to your account at Ring.com to see if your recordings will play via web browser. Additionally, any recent network changes or new network equipment is always worth considering as a factor.
If this concern persists, try power cycling your Video Doorbell (if it has a quick release battery) by removing the battery for a couple moments, then replacing it in the Doorbell. You can also attempt a reset on the Video Doorbell, by holding the setup button for 20 seconds. I hope this helps! 