Is there a way to adjust core settings without actually running a game first? I use an nvidia shield and was playing around with the n64 core when I found out that setting the gfx plugin to rice would somehow break the core from working again (I get dumped back to the android menu when loading a game). The only way I could get the core to work again is to go to my Shield’s app list, find retroarch and hitting Clear Data, resetting everything else I have setup like path locations.
The core options are stored in a file (I forget its name, exactly) and you can just delete that to go back to default core options without killing our entire retroarch.cfg, as well. I think there’s going to be an RGUI option to blank out core options at some point to avoid this sort of situation.