USBF: 75429.540 [0xffffff8048231200] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 1 of Hub at 0x14000000)
USBF: 75434. 5 [0xffffff8048231200] The IOUSBFamily was not able to enumerate a device.
There is an issue with usb 3 ports on mac. Preferable use a usb 2 port if possible, otherwise you will have to update the firmware as dicribed in the wiki