muchuelo

 Same here. Maybe it's a low-res screen issue (Samsung Galaxy S4 Mini)

Edit: I have also found WCNSS_qcom_cfg.ini in /system/etc/wifi/. There is also a symbolic link in /system/etc/firmware/wlan/prima/ which points to the location in my first comment - /data/misc/wifi/

Update: I just realised that if you look up 'mkdir' or 'ls' you get the commands right at the top of the results. So I used bad examples to illustrate...

I have exactly the same problem, except the app does not crash immediately after adding extra languages to the list. But it crashes every time I try to start it...