In the screenshot below, I can see that there are 186 attachments. When I click on the attachments tab in any area, there are always 5 in a row (just like in your screenshot) and I have 20 rows which equals 100 attachments. If I add new attachments the number goes up but I still only see 100 of them. If I add 5 attachments, I can see the 5 that I added but the oldest 5 are removed from view.
