Blue LED showing and drive still spinning?

Unfortunatly I have next to no information about what happened here but I spied my MyBook Live showing a blue LED status and I positivley heard the drive spinning.  The MyBook Live’s working fine and it seems like the LED is now showing the correct status.

Anyone got any clues?  Maybe a firmware bug?

That happens to me, albeit extremely randomly.

Now this IS a guess…  Maybe I spied the drive waking up so the drive spins up and there is, maybe, a small delay between the drive spinning up and the LED then turning Green?   (WDTony, could this be the case?)