I'm using GameEx (standard, not Evolution) on my arcade cabinet. I noticed a few games were missing from my list that I knew were present and working. Just to be sure, I verified the ROMs were present and that they worked in MAME Plus 0.137 outside of GameEx before continuing.
I updated GameEx after not having updated it for quite a while and then did Update List for MAME in GameEx. Now no MAME games are found.
I made no other changes on the system that might have contributed to the situation: no GameEx configuration changes, no directories or files moved/deleted, no software installed/updated, etc.
Does GameEx require use of a minimum version of MAME now? Any suggestions to solve this would be appreciated.