I was given a Lightroom6 Software License Download Card. I signed in with my Creative Cloud account and entered the code to redeem my purchase. A message then came up that said "A serial number is not required at this time. To get started, simply download/install the product, sign-in with your Adobe ID, and it will be ready to use." I clicked Download, and nothing happened! I cannot find the program anywhere on my Mac, nor is it available to install from the Creative Cloud desktop window. Please help!