Hello,
On video collaboration page, when multiple remote media streams arrive (let's say 2 or 3) I get "Dropped Sample Buffer" in my Xcode log and it freezes the UI on iPhone 5s, 6, 6+. Most of the time WebRTC is unable to display the media streams on screen. With single remote media stream, I have observed this scenario also (a very few times). While using older version of WebRTC, I do not get this problem and everything works well.
Some online Q&A suggests that the devices are not capable of handling media streams, but it should not be a problem with iPhone 5s, 6, 6+. Is that true? or could there be any other problem?