John Havlik

How many of the Breadcrumb NavXT settings have you changed? I ask as it may be easier to just reset the settings to the “factory defaults” and then reapply your changes. To reset the settings, go to the Breadcrumb NavXT settings page, click on the “Help” tab in the upper right hand side of the screen. In the Help drop down, click on “Import/Export/Reset”. Lastly, click the “Reset” button.

The Home Template should be something like:
<span property="itemListElement" typeof="ListItem"><a property="item" typeof="WebPage" title="Go to %title%." href="%link%" class="%type%"><span property="name">Home</span></a><meta property="position" content="%position%"></span>
The Home Template unliked should be something like:
<span>Home</span>

By chance is product_cat a non-hierarchical taxonomy? That’s the only way I can think of that could result in the breadcrumb template ending up in a name. Unfortunately, the the way non-hierarchical taxonomies are handled is hacky (and not compatible with the display_json_ld function). Also, it doesn’t appear breadcrumbList supports multi-dimensional breadcrumb trails (which are to an extent are required for listing more than one non-hierarchical term in a breadcrumb trail). For the next release of Breadcrumb NavXT, I think I’m going to have that codepath check if there is only one term and, if so, do the same thing it does for hierarchical terms, which will not have this issue. In the meantime, if you have control over whether or not the product category is a hierarchical taxonomy, I suggest converting it to being a hierarchical taxonomy.

For handling the term selection based on the visitor’s path, you can either write a hook into the bcn_pick_post_term that tracks the user’s path and selects the appropriate term, or use a plugin, such as Paths that does this for you. Note that this tracking will not work with many caching schemes as it depends on HTTP referer field, which doesn’t exist if the PHP processing/response has been cached.

When a post (of any post type) is a member of multiple terms/term hierarchies within the same hierarchical taxonomy, Breadcrumb NavXT will use the first term with a parent, or the last term returned by get_the_terms(). There are ways of setting a preferred term by writing a hook into the bcn_pick_post_term filter. If you do not want to write code, there are add-on plugins that provide an interface for you to set a preferred term within a taxonomy (Breadcrumb NavXT Paths and Order Bender).

You should be able to use the code from the linked article with a couple of adjustments. On line 4, you will need to change ‘category’ to ‘product_cat’, replace MYCATID with your tag_id (e.g. 30 in your example). On line 6, replace PAGEID with the ID of your page that you want to link to (e.g. 500 in your example)

I’ll look into it, but you probably should use a different web browser (Chrome or Firefox).

You should be able to deregister the script bcn-breadcrumb-trail-block-script in an action set at a priority of 12 (or lower) on the init hook placed in a site-specific plugin. See https://developer.wordpress.org/reference/functions/wp_deregister_script/

Are you talking about the “root page” for a post type, or literally a parent post (of the applicable post type) for the current post? If you’re talking about the “root page”, you will need additional code to translate it (extensions exist for WPML and Polylang compatibility). If you are talking about a parent post for the current post, that should automatically translate when using WPML or Polylang.