I've enabled the "Google Drive" setting in Photos, so I get a "Google Photos" folder in the root of my Google Drive. In this folder I can see all my current Google Photos that it imported from Google Plus.
I've copied 30GB of photos into this folder. It's finished syncing. I made sure they all had correct file dates, and exif dates.
None of them show up in Google Photos on Android or in the browser. What am I doing wrong?