ok...should be fixed for next version...maybe I do release another test build first...
first of all, i hope you had a merry x-mass

About the fix, we are nearly there !
moepro [folder: moepro - size: 0]
missing set: moepro
moepro90 [folder: moepro90 - size: 0]
missing set: moepro90
and when i click on Explore>Rompath of the selected set, it opens the folder of the nes softlist (where this two sets are present of course)...
But no hurry, this bug is less annoying as it doesn't try to erase the roms and perhaps i'll find a workaround...
EDIT : "Set information" show the samples which is more logical but the sets are here too...