Did you create character at that slot and then delete it? Because that can causing bug.
This bug happen to some players, and only [MENTION=1]RESiSTANT[/MENTION] can fix it,
Please wait until he check and fix the problem.
current update has bug. sometimes chars doesnt show up. relogging will usually fix it. if it doesnt contact Admins or email them tru support@infinitymu.net.