When I have a virtual machine running, I am no longer able to connect/disconnect external devices. This behavior just recently started. I have been able to do this in the past. For example, if I have a USB device connected to my Mac, previously I would be able to choose Devices > External Devices and either connect or disconnect the USB device. Now, all of my devices are always greyed out, even though the device is physically attached to my Mac. How can I correct this?
