Hi guys. I am having this exact issue with my UX2. A bandmate donated it to me to use recently. My interface does not seem to work with my Mac running Mojave. I have the two clip lights flashing on the UX2, although I have installed the latest driver to my Mac and have also tried downloading Line 6 Monkey to see if it could help. Monkey is telling me I do not have the latest update installed (7.6.8) even though I keep trying to reinstall it. It does recognise the device though... I am not sure what else to try at this point.