Thundar on Github's site, then after I noticed all the !s & errors, I deleted all of it, including Xcode. Now oddly the exp
_Em Try deleting the Application Support/OpenEmu folder and the preferences file. Most likely, you ended up writing some settings to a config file that aren't compatible with the Experimental version. That said, I've compiled both versions and run the downloadable binaries as well, and other than having to go into the prefs to re-enable some modules, haven't had any problems. Hmm. Check to see that the Genesis and SCD modules are still enabled; that actually could be your problem.
Thundar Found a superb Openemu compiling video on YouTube that fixed all my problems. I tried compiling 4 times using OpenEmu's Github gui instructions, it had 999+ errors in it, but using the video's method had only 26 errors & all the core'd systems work great.
Thundar Was waiting for someone to ask :) : https://www.youtube.com/watch?v=sT5mMsrCGb8 It was 2 years ago, but I understood this better than Github's instructions even though they are about the same.