Our forum has been successfully moved from vBulletin 4.x to XenForo, but we are currently facing two problems. The first one is when we edit users in admin control panel. We can’t edit all of the users who have secondary groups along with their primary groups. When we want to remove or add a secondary group to a user who already had a secondary group, the page keeps loading after we click save. It keeps loading for a while, and then nothing happens. Except from removing or adding a secondary group, everything works fine when we edit user in admin control panel. The second problem we are facing is the confirmation email system. When a user edits his or her profile like email address or password, his or her account is automatically set to Awaiting email confirmation (from edit) until he or she clicks on a confirmation link in the confirmation email. The forum says that a confirmation email was sent, but there is no email in that user's email inbox. Therefore, we have to manually change our users' account states from Awaiting email confirmation to Valid.