But same to me. Mi4W - since MiUi8 no incoming calls, texts, emails, ... make the band vibrate/light. Screen unlock works fine. With MiUi7 all was fine. I use MiFit 1.4.113 with MiBand firmware 1.0.9.48 (I know it's older but worked fine for me with MiUi7).
Autostart of several apps do not work...