Members list does not show all members correctly

For our newly created server it appears as some sort of off-by-one error. Should be two users in each category here: Developer - 2 (BlackATM), Online - 2 (AnthonyDPS) Both users who were showing in the previous image go offline here, and so the two categories disappear, and only one person appears in the offline one. Offline - 2 (AnthonyDPS) I have another server that doesn't have this issue, but it was created a while ago. Maybe the different appearances of this issue is Hampus trying to fix it?