I can't see my partner's web cam and my partner can't see mine

Hi there!
Me and my partner have been using W2G for a few months by now, but lately we’ve been getting trouble with the camera. We can’t see each other no matter what, we tried cleaning all history data and caché but nothing seems to work. Also we both run the WebRTC troubleshooter and got no problems at all. What can be the cause of this issue? Thank you so much for taking the time to read this.
Also it is worth mentioning that my partner can hear my mic and I can hear theirs.

Whoops, got it working. It was a firewall problem.