hello. I just installed younity on my macbook pro and found that I cannot add "machintosh hdd" whenever I opened preference and try to add. That means younity does not scan my macbook pro. I can only add my portable hdd which is connected to my macbook pro via usb. As a result, I can see the files from my iphone that is inside my portable hdd, but I cannot see the files that is inside my computer itself (macbook pro). why is this happening??