My guesse is the glitch is a mathematical one. for example: I use two maps (Operation Firestorm and Karg Island) as my only maps in my preset. When the two maps are combined in my preset the glitch takes only the lowest 'default' max players setting between the two maps (in this case) and compares it to the maximum allowable max players setting for these maps which is 24. since the lowest 'default' max player setting between these two is 16, Operation Firestorm default is 24, Karg Island default is 16. It keeps 16 and since 16 is not 75% or higher (18 or higher) of the maximum setting you can set for these maps (which is 24 in this case) it sends noone to your server. This is just a guesse of course.
