when RA try to recorgnize device’s language(example pic is korean) and try to overide it to first run, it’s combinate with UI that doesn’t support certain languages font that can’t render in that UI mode, it breaks every text in the menu so can’t change to english language without root the device and manually modify the RA’s inner config file under system/app data in android.
these CJKV font and certain UI issue is reported quite some years ago include me, guess during 2016~2017 i guess.
anyway current first run auto override at language function will make same issue again even in fixed these issue someday. highly suggest to just run with English, then show ‘asking check message’ to users pick GUI mode and Language at first time that RetroArch unpack the asset data. (or add one more app excution option that android api deliver to longpress on app icon to ‘run safemode’ or ‘forcing reset config’ kind way to do workaround on these issues)