Was using a 2012 rMBP but just upgraded to the late-2013 rMBP. I restored from a Time Machine backup and everything went perfectly. Eventually, I ejected Time Machine after my first session with the computer, but had not done a backup with the new laptop yet. When I plug back in the drive with Time Machine, the icon is orange instead of green and the backup is moving at an insanely slow pace. I tried ejecting, rebooting, but nothing changes. Edited to add: I notice that while it's backing up, my time machine icon in the bar isn't animated like it used to be (little arrow spinning in a circle indicating a backup is occurring). Should I just wait it out and let the backup complete to see if the icon changes back and the normal speed resumes? Is this an issue for anyone else?