many chances, in the coming weeks
any chance to get the plugin working in 2.4 ?
Many thanks for the prompt reply. Plugin installed and working :D
hi,for your seond question
be aware that the proess is not fully automati : if your tags are automatially added from IPT or EXIF fields it will be fine, but you add tags manually you will a have to go the main albums admin page and press the bottom button "Generate all SmartAlbums"
for your first question, no idea sorry
Just installed Piwigo 2.3.1 and really impressed with how easy it was to install, how simple it is to use and how well it works - so Thanks!
I've got all my photos tagged (from the Keywords in IPTC) and they are in a physical album based on the folder structure (all fine). I've created a virtual album, and using Batch Manager added all the photos with a specific tag to that virtual album.
From the home page, the list of albums on the left includes the virtual album, but it doesn't show a count of any photos.
Holiday Set 
If I click on the Test album, I do see the 10 photos that are in it. As it doesn't think there are any photos within the album, it doesn't show the album on the right main section of the home page. Any idea why not?
Also, partly related to this, is there a way to have a virtual album built of all photos with a specific tag without having to use Batch Manager? If I was to upload more photos with the same tag, I currently need to go into Batch Manager and add them to the virtual album.