Please take a look at a site I’m developing, you will see I am making use of the slideshow plugin flexslider. You will also see that the site has multiple tabs. If you look at the news section you will see the articles each have a slideshow, these work fine when the tab is open by default, but if the article tab is closed by default and then opened, then the slideshow images are all small and not working correctly. Any help?
What you might want to try is to wait to initialize the slider until after the window is loaded. It looks like the widths of the list items in the slider are programmatically calculated. That calculation could be wrong if the image isn’t done loading yet. So it’s best to wait until it is loaded.
// load slider here
Or, make sure all those images have proper width/height attributes on them so the slider list items can be calculated correctly right away.