Since Pie came out, I am getting a phone icon at first, then if I tap the button while the phone is ringing, then the Caller ID shows. I'm sure this is for privacy, but I liked it better when I could see the caller without having to press a button.
My problem is sms notifications. I am no longer getting them. Didn't happen when I upgraded to Pie though, I think it happened after updating to the latest version of the Mi Fit app.