who are you for tell me I can not give an advice? Be quite bro, you can even drink gasoline, it's up to you, but tell the truth... by installing xposed especially in beta rom you will face for sure new bug and issues or app forces to close...
IT WAS NOT AN ORDER; BUT JUST AN ADVICE....DO YOU...
MIUI 8 global beta ROM for the following devices will be released progressively in the near future: Mi 2/2S, Mi 3, Mi 4, Mi 4i, Mi 5, Mi Note, Redmi 1S, Redmi 2 Prime, Redmi Note 2, Redmi Note 3 Qualcomm. Please stay tuned!
At the moment China developer is still suspended, meanwhile Global beta is out for few devices today, and will be released for mi4i soon/progressively
http://en.miui.com/thread-307541-1-1.html
adb side load can be used to flash rom...https://dayteamblog.wordpress.com/2014/09/13/installare-zip-via-adb-sideload-twrp/
I'm happy you finally flash rom when you get problem....anyway there are other way to do it like adb sideload -twrp, OTG-USB-twrp, MIFLASH.... I don't know what you did...