Duplicate posts displaying in feed

Our WPP feed is showing some posts twice for some reason. I tried clearing the plugin cache, the WP cache and the server cache, but that didn’t change anything. Why is it showing duplicate posts?

Screenshot:

https://www.dropbox.com/scl/fi/ellv1e4j9ezbc8upwtbw1/Screen-Shot-2024-05-27-at-10.03.29-AM.png?rlkey=fjwqff0lk1cvteva8nu6s2poe&st=4inq4891&dl=0

The page I need help with: [log in to see the link]