i have noticed this for a while now in the 10 mobile builds and i remember this being an issue in 8 or 8.1 and it was fixed then at a certain point but it still lingers in every 10 mobile build to this day and it's one of my major frustrations with my phone every single day. i notice it more in groove because it's a somewhat active application during this transition. i get in my car every day and groove is supposed to play automatically when it connects to bluetooth in my car. the process has changed as they've updated 10 mobile and updated groove. at one point i would just wait until i got to a certain part on the street that i knew i had disconnected from my home wifi and had a cellular connection for many seconds, then i would try and play music. now in the latest build i'm getting a playback error for many minutes after and then i close the app and still get the error on reopen then wait and wait and try again and then it works. i know there's been authentication issues and such during this process with groove but it's the same with other apps when the transition happens, they either hang and time out or might just close or whatever it might be. is it just me or does this all seem related to not having a smooth transition between wifi connection and