Im having the same issue as the picture stated above and have turned off my WebRTC
Can you do please do the following to help me find the cause for this:
In Chrome, can you do a right click on the site when its not working and select “Inspect”. On the dialog that opens up click on “Console” and send me a screenshot of the output. You can post it here or by mail to florian@watch2gether.com
This issue related to disabled WebRTC is finally fixed. Thanks to everyone who contributed to the conversation!