I've recreated this bug on a separate page which is called CMS Bug
At the very top there is a video block that I have manually pasted the link in.
May 9-th post has same link that have been automatically grabbed from Facebook post via Zapier
And May 7th post - I have manually inserted same link into my collection.
So seems like something happens with that link on the way from Zapier..though it looks completely identical for me.
I have only tried this on this particular site, and recreating a new page creates same error. This started happening as soon as I tried to automate it with Zapier.
Links are totally identical in the "Video Link" field but in case of the manual submission the video appears immediately
but with Zapier automation it stays blank
I don't think it is related to my browser but anyway
Here is my browser info