The meetup embeds is not functioning properly. there is a lot of html before the actual embed. this only happens in the front end, in the back end it looks ok and only for posts. Pages, both default and evergreen templates look ok

Eg:

Post: https://k8s.p4.greenpeace.org/gutenberg/story/24579/testing-meetup-embed/

Default template: https://k8s.p4.greenpeace.org/gutenberg/testing-meetup-embed-default-template/

Evergreen template: https://k8s.p4.greenpeace.org/gutenberg/testing-meetup-embed-evergreen-template/