Pinterest Rich Pin are not updated from the Collection Item

Hello Community
Problem:
The Pinterest Rich Pin crawling only works if we create an new Collection Item.

Case:
A year ago we create in Webflow a collection page for recipes. Now we update the page with h-recipe tags to index the Reciepes on pinterest.
The Tags works and a rich pin on pinterest will be created if we create a totaly new recipe item and insert the link on pinterest.
But: if we use an url of an existing (or a duplicated) item it doesent works: no rich pin information won’t be shown on pinterest.

We work with h-recipe, because schema.org won’t work between webflow and pinterest.

Example with an existing item and no rich pin:

Rich Pin Example with a new item:

Do we really have to recreate all collection items? That would not be good for SEO at all…


Here is my site Read-Only: Webflow - le-parfait-corporate-web