Hey there, So I have seen that a lot of people are having the same trouble I was. I was adding members to my clan, but they wouldnt show up on the active roster. So this is what I did, I kicked off a member of the team that was not showing up from the app, I had them go on and leave every single one of their previous clans and that is for every call of duty game, once done I sent them another invite to my clan, once they accepted it, they were on the active list now. Hope this helps some. its been working for me everytime now.