Nvidia Shield TV is upgraded to Android 11. Since Android 11 does not allow direct file access, you can not play games in the way you did. YabaSanshrio 2 Pro 1.7.1 will support Android TV 11. But since Nvidia Shield TV does not implement the "Storage access framework" property, you need additional operations.
Connect Shield TV to PC via USB. Move files in "yabause" folder to "Android/data/org.devmiyax.yabasanshiro2.pro/files/yabause" using explorer.
If you have games in other folder, Select the folder by [Settings] -> [Select Game Directory] -> [ADD]. Caution at this time you need a MOUSE to push the 'USE THIS FOLDER' button.
posted by: devMiyaxBack