New video not showing up on Mastadon

Earlier today, a video was posted on our server: Riksantikvartimen - Kulturmiljø og beredskap – ny ROS-veileder for kulturmiljø - Riksantikvaren

I’m following the posting account @ra@peertube.ra.no from my Mastodon-account, but the new video is not showing up in the feed there, like has been the case for previous videos.

What can be the reason for that, and is it possible to force it? Most of the followers are following from Mastodon, so it means that they will be unaware of this new video (unless, of course, this problem only applies to me).
The video comes from a YouTube-synchronization.

Only the previous video is available in the feed: