I have 6 of these units, I am having trouble calibrating them to get them all to come on the same time. I cant seem to get through the process without it freezing/hanging. It doenst always stop in the same spot, but never lets me finish even one light. I tried to update the firmware on them and can only do 3 of 6. The other 3 have "firmware update" all greyed out for some reason I dont know. See attached... Anyone have this issue also? I tried it from reeflink and direct usb cable. Mike