I use iCloud photos, on a new Catalina MBP and on iOS 13.6.
on both of those devices I see
7201
photos.yet, on iCloud.com I see
7200
.there is always a one photo difference.
Adding and removing photos made no difference, iCloud and the Apple devices just gain and lose photos normally. Yet the difference is always there.
Any ideas how to debug?
Answer
On your Mac, create a Smart Group with the filter:
Photo | is | unable to upload to iCloud Photo Library
This should hopefully display the problematic photo, which you can try to delete and re-add.
https://daringfireball.net/linked/2018/01/26/apple-photos-unable-to-upload
Attribution
Source : Link , Question Author : Woodstock , Answer Author : pkamb