[ATTN TOM] MAME update list problem

I just updated my MAME roms. I deleted the entire folder's contents, and then placed my 1,075 choices of MAME roms in it. I started up GamEx and went to the MAME section. It asked to update list, and when it was finished, my games appeared. However, everytime Igo to the MAME section, it asks to update the list. This is not just on every start of GamEx. This happens if I leave the MAME section at all and return.

When I review the log.txt, it attempts to load the game list, and fails. If it creates a list everytime I start it, why can't it find it?

Please help what I'm sure is a simple solution that I cannot find.