Thanks for the advice guys!
I do agree that there is cause for concern that the car shifts to neutral.. Good thing is that I drive mostly on normal roads and not anything majorly inclined.
It has not happened in the past few days but I am concerned and will have it checked for sure.
2012 535xi Imperial Blue Oyster interior
2012 Lexus CT200h Star fire pearl Ivory interior
2008 Infiniti G35x Aspen pearl Graphite interior - you are missed my friend