I found that some songs don't display all of levels in the music. For example, Challenge level of Egoism 440 and Expert level of Over The Period aren't show up on the Stepmania console. I am sure those data should have the level since the download screen describes so. (http://zenius-i-vanisher.com/v5.2/viewsimfile.php?simfileid=25801)
Does anybody have same situation? I searched similar problem but I could not find any related information.