unintent

update I finally got everything working with retroarch and launch box. You have to go to launch box settings at the very beginning and make sure it says yes to load every single core by default. it seems to me for the Nvidia shield this should be the default setting but it's not If it was I would have never had an issue.

update, it didn't work on shield...period! I removed all external storage. did a factory reset. installed launchbox then retroarch. does not work. any help?

after latest update shield will not allow retro arch or launchbox load and run any games. it seems to be internal shared memory issue. everything works fine on stock 16 GB memory, but if I format an external 500 GB USB hard drive and set it to let shield use it for internal memory launchbox and retroarch no longer work. mame4droid works flawlessly. what is stopping retroarch and launchbox from working? launchbox sees and adds the roms but will crash if I try to play it. the problem seems to be retro arch as it does the same thing. sorry if this problem has already been posted. I did not see it.