Have been told the issue lies with Embed.ly - third party service provider. Embed.ly is yet to respond to our bug report - hopefully Webflow is also following up. There is a work-around involving a custom embed in a rich-text field plus custom css to make the video responsive.
I second this, even after embed.ly is “all systems operational” it’s still not working. I sent in a support request to embed.ly to notify them. However, maybe there’s an issue on the Webflow side now too?
I just wanted to give you a quick update on the YouTube links issue.
Looks like Embedly status page is not reporting an error with embedding YouTube links anymore, and I was able to test some YouTube links again successfully.
Engineers have recently deployed fixes for the remaining YouTube embedding issues following on from the Embedly outage.
I can confirm also now with testing that both YouTube full video URL and YouTube short URLs now working, and rich text embed for YouTube links is now working again.
Please let support know if you experience any further issue.