List of All Members misses registered users

Hi, I searched this and found another person made a post in progress, but the responses were made private. I’ve got my Members page sub-menu-ed under my “Clans” tab. When I click it, it only shows 4 accounts registered. But we have 10 users registered.
As well, the Member Search bar doesn’t seem to let me actually find anyone by username, it would seem.
Thank you in advance for help.

Members