Arcademania in ios app store. works great, but kinst2 doesn't show up

[MrSco]

loving the new app store version, Arcademania, but for some reason some games don't even show up to launch even though they are in the roms folder in the app's Documents data folder. kinst.zip works great, but kinst2.zip doesn't even show up even though all the chd's and bios files are there. Is it filtering out certain games from showing up?