Are you referring to machine moving around in the View > Machines view? If yes this document may explain why this is happening:
And to answer your questions, the View > Machines is a dynamic view. The machines will be in the container from the last scan so the machine will move around if the machines are scanned from different Machine Groups.
Thank you. That was exactly what I was looking for. I didn't realize that the machine view was simply just showing the results of the last scan.