Possible solution at 1st page under
Whatsapp delay or no notification solution

It's a known issue for now. Locking it on the task manager is the temporary solution for now, just wait for them to fix this bug, hopefully at this Friday's update.

Developer rom will get updates every Friday, in MIUI community they called it Orange Friday.

You won't lose everything, just use updater app to update or download from PC and transfer to phone and flash manually without wiping your data and cache.

wait wait wait...

The Mi Market is awesome, why need remove it?

do you know "some application" in google play store required $$$ to install
but in Mi Market, it is free
   

no example given this time, i am too lazy   

Yesterday for Developer rom, no update for Stable rom. 

At first i ordered and received this Mi3, my 2 yrs old S3 still with me, since i not confident enough this Mi3 can offer similar experience or better than my previous S3. Yes for me S3 after two years is so reliable for my purpose. So as main driver in my life, i'm in between to move or not to this new phone, China made/brand not even in my mind since i only known Samsung, HTC, LG,Nexus... but at it price i think not harm to give it a try. But after 3rd days of using it, i've advertised into mudah my beloved 2 years old S3. Since I confident enough to move to this phone. I'm glad after 3 weeks this phone never give me a single issue or bug, beside the phone contacts need to add +6 thing. So all of it is from my personal perspective... it might different for others maybe...