To Everyone who keeps getting errors, here are some possible reasons to tell as well as solutions that could help ya.
Issue 1: heavy RAM usage, since its using 1.1, OpenGL, and the resolution is 1280x720.
Solution: Turn Playercache, Precache, and BufferedRead down to zero and set unloadSystem to 1 in mugen.cfg, and add the 4GB RAM patch (unless it was already implemented.)
Issue 2: slight BG errors with certain stages.
Solution: Check the definition files and go through each and every Bg number and see what some of the minor causes that prevents it to load, or load the sff in fighter factory to see if they're any corrupted sprites. OR with the one time loaded stages, same as solution 1.
Thats all I know of what needs fixing, but if these still don't help, then I tried my best.
He who is brave is free! - Lucius Annaeus Seneca