I noticed today when setting up a "Fediverse" collection, that another collection already existed with that name. When I went to view my collection, it was showing the other /fediverse collection instead. I changed my name to "FediNews" and that cleared it up.
So, going to https://kbin.social/u/box464/c/Fediverse goes to the other /fediverse collection - actually it still does! Not sure how that is happening since I don't have that name reserved now.