I suffered multiple 'soft' restarts, every 8-9 minutes, followed by a 'hard' restart, losing all my settings, bluetooth pairing etc.
The media system did operate for a little longer after this, but the soft restarting began again after an hour or so. Again, multiple soft restarts, followed by a hard one. After this second time around, my system seems to be back to normal, or, to say the least, operated normaly for ca. 5 hours. We'll see, keeping my fingers crossed. BMW NL is aware of the problem, should it persist.