I use an Android phone, which uploads photos automatically to Picassa/Google+ into separate albums (by date) into an album called "Auto Backup". I can change these separate albums (the date-based sub-albums of "Auto Backup") into actual albums that then show up as a unique album in the main list of albums.
When I try to access these new albums created from an "Auto Backup" sub-album, it only shows one photo in that album - the last one. This is happening both in the pop-up album selector as well as in the results of the shortcode.
I can download these albums to Picasa on my mac, create a new album from them, then upload that as a new album and all of the photos show just fine.
I have put both versions on a page to show the difference:
On the above page I have included the rss output of the shortcode. What's interesting is that the rss output looks like it's including the other photos - they're just not being picked up by the plugin for some reason.
Please let me know if I can elaborate further.
thanks for a great plugin!