We have a service providing identification services via video, i.e. users get on a WebRTC video call and follow some instructions, all the while seeing themselves full screen. So this web site displays the user's camera full screen with a few overlays. In iOS 18 beta, this stopped working; the video isn't rendered anymore. The remote end of the conversation can see the video fine, so the camera itself and WebRTC are working. No errors in the console. When tapping the site settings button in the address bar and the font size/reader/translate page dialog pops up, now suddenly the video is being rendered just fine, immediately. It suggests it was there the entire time, Safari just didn't bother actually showing it. It's hard to create a minimal reproducible example for this. The behaviour just suddenly changed starting with iOS 18 beta. Has anyone observed something similar or has any tricks which may enable a workaround?