My R4 has developed a strange habit that I'm not sure if I should be concerned about or not. The blinking "Spinning" light below the Thunderbolt connected light is blinking constantly. In all other respects the unit is functioning perfectly. I have: Ejected and disconnected the unit and re-booted it (same result) Moved the TB cable to the other port on the R4 (Same result) Only clue I can give is that this began after I ran the monthly utilities...Media Patrol and redundancy check. Anybody have any ideas?