Made progress after talking again with URC tech support. By resetting the Main Power OFF hard key (copy and paste Power OFF Only from the device to itself) the macro now runs properly.

What does not yet work correctly is the hard Power OFF key when you are within a device. The hard Power OFF key is supposed to replicate the internal device Power OFF key. I find it does that, but for only that device. It will not run any macro attached to that internal device Power OFF key.