Hi, on Macbook Pro when I connect the USB the X Y Z Work coordinates switch to disabled. Hi do the job but stay on disabled.
Go to Troubleshooting tab -> Application Diagnostic and Untick Disable DRO Updates (At some point you accidentally ticked that on maybe?) That option can be used to Disable DRO updates as that can help slow PC's (instead of having to update the display every couple milliseconds, save some CPU if you don't need it and have a very old PC)