[MAME not working with LaunchBox]

Unchecking boxes did work for me— but I had to restart launchbox to see the changes take effect. This subsequently fixed Bigbox as well. Didn’t know the changes wouldn’t be instant, so when I tried this before and didn’t see a change, I went and undid the fix... so, that is what it is. Thanks for the help— it was enough for me to go back and question the basics. 

[MAME not working with LaunchBox]

Jumping in to follow this discussion— I’m having the exact same issues, applies inconsistently to all emulators.