This would be most useful for me too – https://ww.wp.xz.cn/support/topic/option-to-display-default-content-if-no-translation-available Post 5 on there might be helpful for you?
Does this work on -X?
Just posted to add that I’m having similar problems – seems videos which we’ve had embedded elsewhere in the past are working, but ‘new’ videos (actually a similar age but haven’t yet been embedded elsewhere) are not… website under wraps at the moment but if you get in touch (my email is my username on here @gmail.com) I’d be happy to sort out access for you to see.
