A permissions problem will cause the debugger to fail to start completely (with an error like "libusb_open() failed with LIBUSB_ERROR_ACCESS"). That type of problem won't cause the debugger to only work partially as reported by @dtone1:
A permissions problem will cause the debugger to fail to start completely (with an error like "libusb_open() failed with LIBUSB_ERROR_ACCESS"). That type of problem won't cause the debugger to only work partially as reported by @dtone1: