`MobileRTCVideoView` sometimes fails to show attendee video

Description
We are experiencing an issue in our app where there are times when MobileRTCVideoView will fail to display attendee’s videos. When this occurs, the view is transparent. No matter how many times we call showAttendeeVideo it does not work. Even leaving the meeting and re-entering or joining a different meeting altogether does not correct the problem. However, if the app is killed and restarted then it will work.

The call to showAttendeeVideo does return a true value indicating success, but the video is not displayed. The userID that we are passing in to showAttendeeVideo is valid and matches the userID that has joined the meeting.

If it is failing with one user it will be failing with all users. It is an all or nothing issue.

This issue can occur right from the very first meeting you attend after opening the app. Although we are not sure why, and it is not 100% reproducible, it appears that it occurs very frequently on the initial install. To reproduce, we have about 90% success uninstalling the app, then reinstalling and we see the issue on the first run.

SDK Auth is succeeding with no issues. We use custom meeting UI.

Which iOS Meeting SDK version?
v6.2.11.20350. But this has been occurring we believe since at least v6.2.5.18740 and possibly longer.

Smartphone (please complete the following information):

  • Device: iPhone and iPad
  • OS: iOS 18

Looks like another developer is reporting something very similar here: Black self view after updating to v6.2.11.20350 - #2 by thinktapwork

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