A picture , which I have choose for a gallery Index doesn't displayed. It is visible as Album cover, but not as picture in the gallery..
Edit your gallery page (from the 'Pages' tab), scroll down to (and expand) the 'Override Site Options' section and make sure that the 'Show index image' checkbox is selected. (If it is not already selected, tick the box and click 'Save' and then 'Publish'.)
If you always want your index images to appear in the galleries themselves, go to 'Site -> Customize Theme -> Gallery Pages' and make sure that the 'Show index image' checkbox is selected here.
And another one question: How can understand about new versions of JuiceBox Pro and Showkase Pro ?
If you would like to be notified when new versions are released, then please join our mailing list, keep an eye on our Facebook page, follow us on Twitter or subscribe to our blog RSS feed.
Mailing List: https://www.juicebox.net/#logo-splash
Twitter (Juicebox): https://twitter.com/juiceboxgallery
Twitter (Showkase): https://twitter.com/showkaseapp
You can check what's new by visiting the Version History pages:
Version History (Juicebox): https://juicebox.net/support/history/
Version History (Showkase): https://showkase.net/support/history/