Do you have any ideas about why two ROMs show up in the "Unavailable" category in the built-in UI, even though the ROMs are verified as working and run fine?
These two are "Alpha One (test)" and "Invader's Revenge (Extra Sounds)".
"Alpha One (test)" appeared on the "Unavailable" list with this release - the "Invader's Revenge (Extra Sounds)" was there in previous releases.