I just upgraded the Next-gen gallery plugin through the plug-in dashboard. I had created 2 galleries BEFORE I upgraded. I can insert those galleries on any page in slideshow and they show fine.
If I try and insert a slideshow for any gallery created AFTER I upgraded the plugin- the loader just goes and goes and the slideshow never loads.
I CAN however insert an image list and that works but the slideshow itself never shows.
that one does not work
this one does work: