The latest stable build release is MIUI Global 8.5 Stable [8.5.4][NCFMIED]. This build has the July 2017 security embedded within.
What you're using is the Global Beta ROM of MIUI 9, which still needs some bugs to be ironed out of it.
Also, the latest 8.5 build comes with the Nougat update baked in. Would recommend waiting for the stable release before opting in.
Somebody also mentioned a port of the Google HDR+ camera for Redmi Note 4, could you please share the link here. Stock photography is fine, but the video camera performance is abysmal at best.
What you're using is the Global Beta ROM of MIUI 9, which still needs some bugs to be ironed out of it.
Also, the latest 8.5 build comes with the Nougat update baked in. Would recommend waiting for the stable release before opting in.
Somebody also mentioned a port of the Google HDR+ camera for Redmi Note 4, could you please share the link here. Stock photography is fine, but the video camera performance is abysmal at best.