Muhammad Hassan and Daivari have the same entrance music, as they should. However, they have separate files in the Music menu - these are of a different length. The version listed as "Muhammad Hassan" runs for just over a minute, while the track listed as "Khosrow Daivari" is the same music, but runs longer. Should Hassan's entrance moves be lengthened through editing in Create An Entrance, you may want to switch his music to the one given to Daivari so that it is long enough to play through the entire entrance without ending and repeating itself.