In the past month or so (I assume after some firmware or app upgrade), when viewing the app and increasing the video quality, the video seems to stop streaming and the picture/timestamp doesn’t update. The only solution seems to be to go back to the main screen of the app and click the camera to open it again, or restart the app.
Here are the troubleshooting guides:
https://support.wyzecam.com/hc/en-us/categories/360000596591-Troubleshooting
If that doesn’t solve it, keep in mind that this is primarily a user-to-user forum. If you don’t get help here from the community, file a support request including log files. That will ensure that the logs are captured. You might want to submit the ticket right away because there’s somewhat of a backlog. You can always let them know it’s already resolved when they contact you.