You can see in the screenshot below that my "Bible Dictionaries" collection is not appearing on the Parallel Resource menu in the AYBD, despite there being many resources in the collection that contain the article, and despite "Show in parallel resources" being selected.

If I choose the same article with another resource on the list, all is well (notice the wider menu and "2 of 2", which shows me I can access the collection):

No other resources seem affected, just AYBD.