All of the problems sum up with poor communication.
I wish I could vote 1000 times for communication. Every problem I've had from yellow screens to more serious issues would have been nothing if they communicated clearly with me the way they used to do. Their communication is growing worse and worse. I own a Dec 2017 MS 100D and an August 2019 M3 LR. Prior to that, I own an early 2017 MS 100D. The experience of owning these cars would be world-class if their customer service had remained as good as it was in early 2017. Now, at times, it is an exercise in frustration.