Thank you my friend. I tought about same thing, downloading firmware and flashing. But I tought that this little app is not worth investing that time and nerves so I will manually or over rebooting to main menue try cleaning cache from time to time.Sorry my friend I tried searching for a fix for you but couldn't come up with anything, I know you tried posting in other forums with nothing yet but only other thing I could suggest from experience is try flash the stock firmware again maybe a bug or glitch of some kind on current one.
What's more interesting is I tried sending feedback with option in settings with log of crash and sending message over xiaomi community apk to xiaomi support and haven't recieve any answer.
