I am running Smartermail Enterprise 12.4.   When I login as the Admin  user via webmail and go to "Domain Settings" and then to "Users" and choose a domain which has more than 21 users and click on "Manage", I can see all the users except the last one.   If I use the search function to try to find the last user, it does not find it.   If I reverse the "Username" sort order, the missing account is now at the top and the search function operates normally.  After the sort reversal, the old first name is now missing from the bottom and cannot be searched.  It does not seem to matter if the domain has 22 users or 200 users.  Only the last account is missing.   Is this a bug in the program or possibly some problem with my display settings