Hi,
after last update (MIUI Global Stable 10.0.2.0) dual sim is not working on my Redmi 5 Plus anymore (it says "no service"); only the SIM in the first slot works.
I tried the second SIM (let's call it SIM B) on another phone and it's fine.
I also tried to swap SIMs, SIM B on slot 1 and SIM A...