I downloaded a Romset that was .md format and that one works great. Try googling everdrive md romset and look for the is isozone link, someone named smoke monster posted it.
I have the same issue. All other systems work fine, but my smd files would loop back to the gui. I had one bin rom that would work so I used sbwin to convert my roms to bin, but they still won’t load. Is there a known set that works?