I am having the same issues on a new install of SIGPRO.  I have had the ownership fixed multiple times both from my control panel and the host tech support.  I have had forced permissions done on the folder but all that does is allow the app to display the blank (black) thumbnails.  If the permission is not 777 it says the folder is unwriteable... when 777 it displays the app but blank thumbnails.

My reseller plan is at Cartika Hosting.  I have been there for years with zero issues concerning Joomla compatibility.  Please advise otherwise I need to move to a different gallery app.

If I need to create a different thread let me know.

Please install Admin Tools from www.akeebabackup.com/ in order to fix your permissions as they should be and then reinstall the extension.

I have tried everything above but the thumbnails still don't show. I contacted my server host Rochen with your reply #14 plus your main SIGPRO Troubleshooting advice - points 1 & 2. They sent this reply:

Unfortunately your developer has mis-diagnosed the issue. The problem is that you have a high-security .htaccess file in place which blocks public access to /cache as it should. You'll need to have your developer fix their script/template to store content (thumbnails in your case) in a valid publicly accessible location or modify your .htaccess file to allow public access to /cache, or switch to a stock Joomla .htaccess file instead of the Rochen high-security one, thanks.

What do you think? Can you do the first option? Thank you.

This is something your template developer should check...

Hi,

Apologies for resurrecting this thread, but it seemed appropriate.

I tried out unbugged's solution for this and it worked for my thumbnail images. 

I inserted

chmod($thumbimage,0644);

into line 234 of plugins/content/jw_sigpro/includes/helper.php. (I'm on version 2.5.6)

However, I still have the permissions problem with the actual full size gallery images as they are still uploading with 0640.  How do I get the gallery images to change to 0644, presumably its a similar line, but not sure which $ to use and where exactly to place it.

Any help greatly appreciated

Dunxmax

Official support for commercial extensions has moved into the new JoomlaWorks Ticket Support System.
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This forum board will remain public for purposes of knowledge exchange ONLY.

If you have Admin Tools installed & use it to create the .htaccess file it could be that you need to use this solution
forum.joomlaworks.net/simple-image-gallery-pro-%28plugin%29/thumbnail-images-does-not-work/

well, i also use an extension called admin tools and what you need to do is to go to your .htaccess maker and add "cache/jw_sigpro" to the Allow direct access, except .php files, to these directories and then create your .htaccess file and then refresh and should be there.

It worked for me! :D