I noticed this on 4/1/21 and tried troubleshooting but could not determine the problem. When I go to my local newscast, the video's of the news will not play but if I go to a live broadcast, the video plays. I thought the last windows update may have cause it; so I uninstalled it and restarted my computer. But the problem still persists. I reinstalled the windows update and still no video. I also activated windows prompt and ran SFC/SCANNOW and it found corrupt files and fixed them. I use firefox as my browser. I even tried Internet Explorer to see if video's would work; no luck. Any suggestions?