Missing retroarch core options

So i set up the megadrive an pc engine controllers for six button when you hit f1 then choose options/core options and having an option between 3 and 6 buttons. A couple days later the pc engine mednafen pce fast is missing the option for 3 or 6 button controllers but still had other core options. Does anyone know how i can fix? I have searched for hours for an answer to no avail. If I have to replace a file i can get it from another pie i have setup.

Nm. It reverted back to using a button to switch between 2 button and 6 button games