Black preview thumbnail in external sharing apps

This model previews just black in other sharing apps:

I tried telegram and twitter, here on Twitter:

Also checked with Twitter’s card validator - it says: “Unable to render Card preview”

It logs:
INFO: Page fetched successfully
INFO: 21 metatags were found
INFO: twitter:card = summary tag found
ERROR: Internal error (Card error)


I just did a fresh Save View on that model to update the thumbnail and the Twitter card seems correct now.


Thank you! For testing reasons, I did another Save View myself and it seems to work now …