Upgraded to 13.13. 1050 is connected to computer via USB cable. Unmount 1050, disconnect cable and it begins to boot up. It gets to the "Loading courses, workouts and locations" screen, fades out, and restarts the boot sequence about a half dozen times before it finally boots up correctly. If it's powered off and I connect it to the computer via USB it boots and connects normally. I've attached a list of maps loaded on the 1050 since that seems to be an issue with 13.13.