Facebook Comments been lost after 60min

We use a the Comment Layer with a YT & FB Account. I drop the Video ID from the facbookstream in the FB Social media Source and all works fine but after ca. 60min no new comments show up and when i refresh the social Media source the Video ID goes red and won’t be able anymore. We stream via hardware IO to our own infrastructure not with mimolive. The FB page is a company site and i’m a administrator of this site with all rights.

Still in 5.7. the same.

Is it always after 60 minutes? This sounds like a bug in Facebook to me as we don’t have any restrictions on a “hourly base”.