I can’t seem to load your video, but did a test on my end and can duplicate no problem. Although I have to click “refresh” in order to see the duplication. Also if you have a selected number of tags, you will need to remove those as the new duplicated chart no longer has tags associated with it. Something else you might want to check is if you are in a sub-team. I’m not sure that it duplicates to the sub-team and you might want to look for it under “All subteams”. Hope that helps.
Kerry
It might be something specific to certain charts. I’m still unable to reproduce the issue. Could you share a chart URL the next time you encounter the problem? This would make it easier to troubleshoot.