Collection not showing up in the Portal

I don't see the collection in the public media portal.
A collection that should be visible in the Portal isn't showing up, even though it was configured correctly.

If you are using the Portal Display grouped by Tag Group > Event, please refer to this article
- New collection not displayed on the Portal
Otherwise, this could be due to an indexing issue. The fix is to reindex the media by moving them within their current collection.
- To do it yourself:
  - Open the affected collection
  - Filter the search using the same conditions applied in the portal.
  - Select the resulting media and move them within their current collection.
  - Refresh the portal and confirm the collection now appears.

This self-service workaround works well when only a few collections are affected (in the reported case there was a single training-session collection). For a large number of collections please reach out to the ScorePlay support team via the live chat.
I'm not able to update the Portal settings