this same issue happened to me to following my latest service. in addition to issues with ConnectedDrive features like send to car, messages, and BMW Labs Widget. I've written about the issues in some threads
here and
here
i'm currently on software version 001.050.002. i'm not sure what was the previous version or the version orginally shipped with the car. my M235 is MY2016, with a production date in 10/2015.
it is my understand that prior to MY2016, there was no confirmation beep sound. one suspicion i have is that i have an older software version/revision as my seat beep sound is missing.