Conference: does not update UI for newly joined users

[raihanflores]

Example:
User1 starts a conference.. then User2 joins the conference but on the mobile, it does not update(expected to have 2 video frames by now). Now if User3 joins then on the screen of User1 the screen will update with User2 now showing then if User4 joins the conference the screen of User1 will be updated with User3.

It seems that updating the screen is delayed by 1 user and waits for the next event to trigger some sort of sync.

PS. This does not happen on the web version.