Losing Themes On Redmi Pro (6.9.8)

Nov 21, 2016
Hello All,

I bought a Xiaomi Redmi Pro and it came from the store with a non official ROM installed (MIUI 8.1 by xiaomi.eu 6.9.8), because the oficial ROM doesn't have more languages than English/Chinese, (I'm from Spain).

I must say I'm quite happy with the phone, it's quite fluid and runs everything without delays, but when I install a theme from the mi theme store after a while it goes back to the default theme. Does anyone know why does it happens?