Thanks for reaching out! If the lightbox isn’t opening when clicking on an image, there could be a few possible reasons for this:
1. Theme or Plugin Conflict. Since you’ve already tried disabling other plugins, the issue might be related to your theme. Try switching to a default WordPress theme (like Twenty Twenty-Four) to see if the lightbox starts working.
2. Gallery Compatibility Settings. Go to Gallery Settings > Compatibility Settings and switch to an alternative lightbox library. Some themes or plugins may interfere with the default lightbox script.
3. Image Link Settings. Double-check your gallery settings to ensure that images are set to open in the lightbox. If image links are enabled instead, clicking a thumbnail may direct users to another page instead of triggering the lightbox.
4. Cache & JavaScript Issues. If you’re using a caching plugin or a performance optimization tool, try clearing your cache and disabling any JavaScript optimization settings to see if that makes a difference.
If the issue persists after these checks, feel free to share a link to your gallery, and we’ll be happy to take a closer look!