This issue needs to be tested both in Android (any version) and in iOS (14+). Please notice that in Android you'll see the same player as in other audios/videos in the app, nothing has changed. In iOS you'll see a different player for the audios/videos that weren't supported before this patch (it's the same player used in Moodle LMS, it's called VideoJS). There is an open issue to study applying this player to all OS and media ( MOBILE-4237 ). Login in master site. Go to MM Dev Testing course > Record RTC. Open "Page with RecordRTC media". Check that all the audios and videos work. Please notice that the progress bar might not work (the same happens in browser). In iOS, check that clicking the full screen button displays the video in full screen (this isn't a "native" full screen, it's a full screen simulated by us so it will be different from full screen in other videos). Leave the page and open "Forum with posts containing RecordRTC audios and videos". Check that all the audios and videos in the posts work. Leave the forum and open "This is a Book with RecordRTC". Check that all the audios and videos in the pages work, and the video in last page should start playing automatically when you open the page. Start playing an audio or video and, while playing, swipe to the next/previous page (please notice there is a visual glitch in iOS, it's a known issue). Check that the audio or video pauses automatically when you leave the page. Swipe back to the page where you were before. Check that the media that was paused automatically continues playing automatically too.