Mame Controls Don't Save

[johnnydlux]

Some games the controls save, others not so much.  I've noticed 2 player games tend to save (not always), but 3 or more player, they don't save at all.  I was just going game by game setting controls.  Then I tried going to general inputs to change the 3rd and 4th player controls to fit my arcade, but not saving there either.  How do I make the inputs save?