The MM beta ROM have just been released several days ago, while since it’s a beta, i have already met several bugs, such wifi issues. here is a another bug in Settings.apk: if you open Settings, and navigate to Developer options, tap Select USB Configuration, the list you see it’s partly wrong, it has two MIDI options and other mistkakes.
Hence, I modified the Settings.apk and the correctness includes all languages!
Installation: manually rename the file to ‘Settings.apk’ and replace the one in ‘/root/system/priv-app/Settings/’ (644 permission).
Download (odexed or deodexed sytem): Settings.apk