Black video - Spotlight camera

HelloI have just recently connected a spotlight camera to my Ring account and all seemed alright until a week or so ago. I get notifications as normal but when loading the Ring app to view the notification, within 2-5 seconds of playback the remaining time on the video is just fully black.My main router is Vodafone and I’ve got a TL-WA854RE 300Mbps Universal WiFi Range Extender that the spotlight camera is connected to with an RSSI of -56. The Speedtest on the extender returned 30Mbps up and 15Mbps down.Any help would be appreciated.