Collection Add Ons Not Showing

Hi! I've created 3 different collection add ons. This is what the screen looks like when I try to go to my add-ons page:

As you can see, it says in the tab on the side that I have 3 add ons, but it's not bringing them up on the page. 

On my collections page, I can also see all 3 add-ons have been added to collections and are showing on there:

If I click on the link to one of the Add-Ons from this page, then it will open and I can edit them. But if I go back to the add-ons page, it still says I don't have any. 

It's because you were viewing products by a label and that label session stayed when viewing collection add-ons making them not appear.  New 5.5.2 update  includes to ignore the label session.

Thanks :-)