We are working around the clock to pinpoint and properly address the issue. However we have yet to replicate it in any of our test environments. We are also considering a rollback.
Issue is consistent across various browsers, however only affects specific WP environments.
Assuming it is the side effect of a combination of plugins or settings.
If you have a test site that elicits the problem and don’t mind sharing access to it (admin and FTP) it might greatly speed us up. Please reach out through the chat and mention ‘dysfunctional playback’
Will keep the thread updated; sorry for the trouble; thank you for reporting and understanding