Breadcrumb works correctly for one taxonomy menu, but not another.

What configuration settings are you using for custom breadcrumbs?

No, but thanks for including it - it helps. I was thinking about the settings you have configured at admin/settings/custom-breadcrumbs.

Is this a vocabulary type custom breadcrumb?

In your example, are Luggage and Helmets two different vocabularies, or are these terms in one (or more?) vocabulary?

Can you also show the taxonomy structure (including weights) for the relevant vocabularies and terms.

However, one of them likes to attach the first taxonomy term to the breadcrumb trail.

And, just to clarify, is the problem that a taxonomy term is being included when it shouldn't be, or is it getting the wrong term ?

Closing since it seems this issue has gone stale. Reopen after testing with the latest code if this is still an issue. Thanks.

Can you tell me what options you have enabled on the custom breadcrumbs configuration screen (at admin/settings/custom-breadcrumbs) ?

Also what custom breadcrumbs modules do you have enabled?

I haven't tested custom breadcrumbs with taxonomy menu, so I am not sure what issues to expect, but I'll look into it.

Thanks. A few more questions:
Did you set up two vocabulary type breadcrumbs - one for Helmets and another for Luggage ?
Are these set up as you have shown in #3 (above)? If so, the vocabulary breadcrumb just provides the vocabulary crumb that is shown in taxonomy term pages and nodes that have these terms. It doesn't seem that the pages you are talking about (Luggage and Helmets) are either one of these.

So, can you tell me what kind of pages are set up at http://www.pinkgorillacycles.com/Luggage and http://www.pinkgorillacycles.com/Helmets?

Are these views or provided by another module?

If its a view, what kind of a view is it (Does it return a list or table of nodes?).

If its not, what module is providing the page?

Have you defined custom breadcrumbs for these pages (by path, for example?)

Thanks.

I think I see the problem. In the current code, the (singular) taxonomy term page has a path of taxonomy/term/% - so parts/taxonomy/term/% isn't recognized as a taxonomy term page (even though it is). Instead, its being treated as a view with a listing of nodes, and since the "show current node title in taxonomy breadcrumb trail" is enabled - "Backpacks" is being added.

This patch changes the current code so that any path that has component 'taxonomy' followed by 'term' is considered a taxonomy term page. This seems like a reasonable requirement, and should work fine for your parts/taxonomy/term/% construction.

Can you test the patch (against custom_breadcrumbs_taxonomy.module in the latest 6.x-2.x-dev) and let me know if this solves the problem? It seems to work fine based on my limited testing.

Interesting.

Checking out your site, it seems that the breadcrumbs under all of the other menus work fine. Only the All exhausts view (with multiple tids) is misbehaving - the subitems (like All slip-on-sport work fine. Also, the breadcrumb for the All Luggage page (which looks like it has the same url structure as All exhausts (with multiple tids) is working fine...

Is there anything different about these two views (particularly the options under arguments term_node_tid_depth...) ?

Or is there something different about the taxonomy structure - you say there is an extra level of hierarchy in the taxonomy tree, but I don't see this on the site - the menu structures appear to be the same I see the differences now...

Accessories
--Luggage
----(terms in the Luggage vocabulary)

and

Parts
--Exhausts
----(terms in the Exhausts vocabulary)
----Complete System - sport
-------sub items under Complete System - sport
Can you explain how they differ?

Your current link for All exhausts is http://www.pinkgorillacycles.com/exhausts/taxonomy/term/145+146+117+129+...

When custom breadcrumbs taxonomy gets a url with multiple term ids, it uses only the first - in this case 145 - and discards the rest. 145 is BMW - one of the sub terms under Complete System - sport. So the breadcrumb "by design" should be:

Pink Gorilla Cycles → Exhaust → Complete System - Sport

The (child) taxonomy term (BMW) is being omitted because the option "Show current taxonomy term in breadcrumb trail on the taxonomy term page" is not enabled.

The behavior you are seeing on your site is correct.

To avoid showing any of the vocabulary's (parent) terms in the breadcrumb, you need to make sure that the first item in the url is a parent term.

If you change your menu link to http://www.pinkgorillacycles.com/exhausts/taxonomy/term/114+115+116+117 - (i.e. list only the parent terms), I think you'll get the view you want with the correct breadcrumb.

For what it is worth, I'll add a note in the readme file explaining the behavior when multiple term ids are present for a hierarchical taxonomy breadcrumb.

I am marking this RTBC since it appears that all is working as expected.

Committed to 6.x-2.x-dev.