Problems with RingCentral Meetings App

The RingCentral App is not allowing the video to be displayed from the recipient. The recipient states that they can see themselves, but I cannot see them. Seems to be a bug. Tried everything. This has been an ongoing issue with people during a video conference. I am now on with a client for 36 minutes trying to make the video work, it has been impossible. AND I pay for the upgraded system per month. Looks like I should consider cancelling and going back to ZOOM, it is probably a better system with less bugs. Sometimes if the recipient logs into the Meeting App via their mobile phone, the camera comes up and I can see them. No idea why, but this is NOT the first time this has occurred. Audio works fine, but video is non-existent and cannot figure out the reason why.