Image uploads breaking

[paulhennell]

I'm developing a child theme of bootstrap, but have been having issues with image uploads. (They originally work, then suddenly refuses to upload or show old image uploads on the post/edit pages, although the media library continues to work)

Removing the following code from bootstraps functions (Actually the add_filter call to it) makes uploads/gallery work again, which has solved my current issues.

I don't however completely understand the purpose of the code, - can anyone tell me if disabling is likely to cause further problems, if there is a bug in the code here or what.

(I'm guessing this may be related to using Advanced Custom Fields to add images to category pages, as I think that's what caused it to suddenly break, but I reached my limits just in finding where the problem was.)

function bootstrapwp_enhanced_image_navigation($url)
{
    global $post;
    if (wp_attachment_is_image($post->ID)) {
        $url = $url . '#main';
    }
    return $url;