[Resolved] Taxonomy translation custom post type

Hi WPML Support,

We’re experiencing a serious permalink routing issue with a custom post type (programma) in a multilingual (Dutch/English) setup.

🔧 Setup details:
CPT: programma

Taxonomy: programma_category

WPML: All strings and slugs are translated

URL format: /%programma_category%/%post_name%/

✅ URLs that should work:
Dutch: hidden link

English: hidden link

The URL appears correctly in the dashboard, and the custom filter post_type_link replaces %programma_category% with the translated slug.

🚨 Problem:
When I open the correct English URL (/en/program/friday-6-june/hans-dulfer/), WPML or WordPress redirects me to a different custom post type (artiesten) that happens to have the same slug hans-dulfer.

So:

The correct URL exists

The slug is unique within the programma post type

But the frontend loads the wrong post type (artiesten), even though the post_type in the link is programma

I confirmed that the query var detection (via template_redirect) still sees:

csharp
Copy
Edit
[post_type] => artiesten
🔍 What we already did:
We have enabled "Different slugs in different languages" for programma

Custom rewrite is handled: rewrite => array( 'slug' => 'programma/%programma_category%', 'with_front' => false )

We use a custom post_type_link filter to translate %programma_category% per language

We added a fix to request filter:

add_filter('request', function($vars) {
if (isset($vars['name']) && isset($vars['post_type']) && $vars['post_type'] === 'programma') {
$vars['post_type'] = array('programma');
}
return $vars;
});

Still, the page loads a different post (from artiesten) when the slug overlaps.

❓What we need help with:
How can we force WPML/WordPress to route the correct post type, based on the full URL structure (slug + taxonomy)?

Is there any WPML setting or conflict that could cause this incorrect match by slug?

Can WPML give preference to full URL resolution over just matching slugs?

Let me know if you need a debug info report. We’re available to provide access or reproduce it.

Thanks so much in advance!

I am currently seeing see attached.
but looks fine now.

but on click it goes to the artist page, where it should open the program, and it is not opening the elementor editor either, where the dutch don't have that problem, neither the artists i was able to translate en deal with with the translation as i want.

The programma is a very hard one ...pfff.

as you said you made already a ticket for that one ?

if you confirm this is right i will close this ticker and follow up the other one.

cheers,
Yil.