After a full binary update to retropie 3.0 I find that mame4all can’t find the roms. All two thousand plus roms show up under mame in emulatonstation and these same roms were good under 2.6. They are all in the rom directory mame-mame4all.
Now if I run mame and pick mame-libertro the roms run. If I turn around and run the same rom using mame4all it says all the files are missing.
If I go direct to the emulators and run mame under mame4all, mame4all starts and than says it can’t find any roms.
I checked the mame.cfg and the rom file is being pointed to mame-mame4all. everything is as it is supposed to be.