Never mind… although, I had to search for dFactory, find the plugin in the search list and then click install for it to work. Very odd.
I just came across the same problem. Thanks for posting your fix!
Recently needed it for another site and same thing. I’ve never had this happen before…
+1
Just updating one of my sites and ta da na da…
No download… not found
I believe WordPress.org had some issues. As of today 12th Aug 2016 the download is working.
https://downloads.wordpress.org/plugin/responsive-lightbox.1.6.8.zip
Seems odd that it would only effect this plugin. I have setup and launched multiple website since this initial posting and no other plugins had the issue. It is intermittent so perhaps you were lucky although I hope it is no longer a problem!
Download Failed. Not found. Five times, when trying to update from 1.4.9 to 1.6.8, both from the Plugins subpanel and the Updates subpanel. And this happened after updating WordPress to 4.6 and then updating 7 other plugins.
(I wouldn’t call this resolved.)
Moments ago version 1.6.9 of the plugin was uploaded to the respository, and the one-click update DID work. Thanks.