Black Screen when playing motion

I am facing this problem with Doorbell 2. I see black screen with ring logo when playing motion video both on app and PC. Live view recording and playing is fine. Called ring help 3-4 times, tried all the remidies they suggested. No issue with the router speed, using same router for many years . They though it could be a hardware issue. They sent me a new door bell 2. After instalation, new doorbell recorded and played 2-3 motions on the day one (no black screen). Later, picture turned black again. I am back to square 1. I do not want to call them again as Ring people don't have any remedy for this issue. I believe this is some kind of bug like Corona Virus which needs to be rectified asap. This is a security issue and needs to be sorted out . After reading other people's post, black screen issue appears pandemic PLEASE DO SOMETHING