If "dd" is running in AM, try to quit/force quit it, and see what happens in Terminal.

If that doesn't work, shut down your MBP and see what happens when you start it up again. (If you get a pop-up that "xyz process" is preventing shutdown, go back to AM and quit/force quit xyz process.)

Last edited by artie505; 04/24/20 04:49 PM. Reason: More
The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire