I have a WD My Passport Ultra that is not being recognized on my Macbook Pro. Prior to this I had no problems with but I did have to interface it with Paragon. When I plug in the passport I get a message saying the Disk you inserted is not readable by this computer. I have the option initialize, ignore or ejected. I choose initialize and it says partition map and S.M.A.R.T. status not supported. Then i click on the first aid button at the to of Disk Utility and it says operation successful. In the past I had no issues but i did have to download paragon to get my passport to work.