If a Mac OS X 10.11 system is powered up with an UR22mkII attached, it takes up to three times longer than usual to start up the system. After starting up, the UR22mkII is not recognized by the system and the LED is blinking.
If the UR22mkII is re-connected to another USB port on the same computer, the UR22mkII will be recognized and works fine. However, the initial USB port is still inactive and cannot be used with any other USB devices until the Mac is restarted.
Please update the UR22mkII firmware to v1.02 or higher to resolve this issue. Download...