I am also experiencing problems downloading all my
pictures 1000+ and now, authentication problems.
Program worked great with 700+ pictures. I uploaded
another 400 & when I tried to backup, it showed the
correct number of pictures, but did not display them
all. A subsequent backup resulted in only 450 files
or so instead of over 1000.
I deleted the app & downloaded again. Now I get a
message that authentication is necessary. When I log
onto my Flickr account, it indicates that
FlickrBackup is already authenticated. I have tried
removing authentication, but to no avail. The
authentication message does not provide any options.
Any help would be appreciated. I will be happy to
assist you with any testing you may wish to do.