This is regarding the JIG Settings > General tab > Behavior of the plugin section > Take over and replace WordPress gallery shortcodes when you chose the Yes, act in place of the shortcode option.
Other plugins and your theme can also aim to replace the standard WordPress gallery. Sometimes the other solutions "win this race", [...]
JIG Smart Deeplinking works by adding certain meta tags to the head of your page, but only in very specific circumstances, when it's actually needed. SEO plugins such as SEO by SQUIRRLY have a task to add good meta tags to every page. Some of them do it in a way that JIG can't overcome them, [...]
Having cropped images (most likely square) even in the lightbox is a telltale sign of a theme developer's bad practice. WordPress has a few built-in image sizes, of which JIG uses the "large" version. When you upload an image, this size is automatically created. It's good in cases when the uploaded image is way too [...]
Unfortunately this theme has several CSS rules that severely affect JIG's customized prettyPhoto. They don't allow nice counter-rules so you'll need to edit the style sheet directly. A child theme works but a copy of their style sheet is still necessary. So, the solution is ugly and will impair your ability to update the theme. [...]
Please try this fix first: The gallery only shows when I reload the page
So, if you've done all that and it doesn't work, it all comes down to a more advanced problem, coming from the theme.
Check your theme, do a mass search in the JS files for parseHTML( (yes, including the open parenthesis). It'll [...]
Sorry, but the mobile version does not use WordPress best practices. To an extent where it makes plugins unable to run on the page as it does not make use of the wp_head(); nor wp_footer(); functions. Even if you include wp_footer(); in the page, duplicate jQuery problem will start to occur. It's [...]
Edit this JS file /wp-content/themes/oneup/framework/js/pe/jquery.pixelentity.widgets.bslinks.js of the OneUp theme.
Find this around the beginning of the file:
Change it to:
It would be the best to use another lightbox, that is not included in the theme, such as PhotoSwipe. This theme (otherwise very good) is one of the worst contenders regarding compatibility with custom prettyPhoto solutions.
Please note that it's generally not recommended to use Page Transitions. You could keep the transitions on though, but there [...]