Slideshow Block breaking when added via Page Types or Stacks

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I have a slideshow block on a website I am developing http://www.whiteface.vemglobal.net/... . It's at the bottom of the left sidebar. It shows up on some pages, but not other pages. When I publish edits on a page where the slideshow is missing the slideshow will appear, but it will disappear on other pages.

At first I was using page types to populate the block across all the inner pages. Then I tried adding the block as a stack then adding the stack via page types. Same result. I've even tried changing the slideshow block to a global block and hit the same wall.

Today I tried removing the Link URL and now all the slideshow images show up across all the pages! This is great, except that my client wants the slideshow images to link to specific specials on the website!

So the issue must be some conflict with with the Link URL. Has anyone else encountered this issue or found a solution to it?

sketchyTK