Hi,
You are using an outdated attribute for your image links.
Since v 1.5 every link should look like:
<a href="..." data-rel="lightbox-gallery-1731">link anchor<a>
instead of:
<a href="..." rel="lightbox[gallery-1731]">link anchor<a>
The 1731 number in the rel is taken from your site, used here as an example of unique gallery id.
Indeed, that is now working just great ! Thanks a lot for the quick and accurate answer !
For people having a similar issue :
– In NextGen Gallery > Other options > Lightbox effect (not sure this is the exact terms, I am not using an english UI)
– Effect: choose something like “custom”
– Source : data-rel=”lightbox-gallery-%GALLERY_NAME%”
– Enjoy ! 😉