I ran this command
rclone check gd1:'Google Photos'/2017/07 gd2:'Google Photos'/2017/07
And I got a bunch of lines like this:
ERROR : 20170706_114303.jpg: File not in Google drive root 'Google Photos/2017/07'
ERROR : 20170710_181544.jpg: File not in Google drive root 'Google Photos/2017/07'
So which remote is missing the files? gd1:
or gd2:
? Does ‘root’ mean the first remote?