diff --git a/composer.json b/composer.json
index 6dd85b5d..81436ac7 100644
--- a/composer.json
+++ b/composer.json
@@ -265,7 +265,7 @@
               "Exposed operators are not included in fieldsets https://www.drupal.org/project/views_ef_fieldset/issues/3173822": "https://git.drupalcode.org/project/views_ef_fieldset/-/merge_requests/1/diffs.patch"
             },
             "drupal/term_reference_tree": {
-              "Term Reference Tree: Re-implement Track List https://www.drupal.org/project/term_reference_tree/issues/3064280": "https://www.drupal.org/files/issues/2026-09-24/term_reference_tree-3064280-tracklist-2.0.3.patch"
+              "Term Reference Tree: Re-implement Track List https://www.drupal.org/project/term_reference_tree/issues/3064280": "https://www.drupal.org/files/issues/2026-09-29/term_reference_tree-3064280_bring_back_tracklist-25.patch"
             },
             "drupal/workflow": {
               "Restore ^11 on submodule info.yml, lost in #3607490 regression https://www.drupal.org/project/workflow/issues/3607490": "./patches/workflow-3607490-submodule-info-d11-2.1.13.patch"
diff --git a/composer.lock b/composer.lock
index 91e27fb7..91e969cb 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "829c4774582ddf65006e45de87cb6763",
+    "content-hash": "c66fde73c02a835261fbc5e72f018d42",
     "packages": [
         {
             "name": "asm89/stack-cors",
diff --git a/config/sync/core.entity_form_display.node.materiau.default.yml b/config/sync/core.entity_form_display.node.materiau.default.yml
index 8f3ec078..6803c8fe 100644
--- a/config/sync/core.entity_form_display.node.materiau.default.yml
+++ b/config/sync/core.entity_form_display.node.materiau.default.yml
@@ -313,7 +313,7 @@ content:
     weight: 35
     region: content
     settings:
-      start_minimized: false
+      start_minimized: true
       leaves_only: false
       select_parents: false
       cascading_selection: 0
diff --git a/web/modules/custom/materio_admin/materio_admin.module b/web/modules/custom/materio_admin/materio_admin.module
index b3d1fd4b..bbadd176 100644
--- a/web/modules/custom/materio_admin/materio_admin.module
+++ b/web/modules/custom/materio_admin/materio_admin.module
@@ -5,33 +5,23 @@
  * Admin back-office enhancements.
  */
 
-use Drupal\term_reference_tree\Plugin\Field\FieldWidget\TermReferenceTree;
-
-/**
- * Implements hook_field_widget_single_element_form_alter().
- *
- * Attaches the widget layout library wherever the term reference tree widget
- * renders (thesaurus on materiau, etc.), so the selection tree (left) and the
- * sortable track list (right) sit side by side.
- *
- * Transposed from the retired matminimal theme CSS, which was tied to the old
- * adminimal-based admin theme. The selectors target the widget's own markup
- * classes and are admin-theme agnostic (works under Gin 4 and Gin 5).
- */
-function materio_admin_field_widget_single_element_form_alter(array &$element, \Drupal\Core\Form\FormStateInterface $form_state, array $context) {
-  if (isset($context['widget']) && $context['widget'] instanceof TermReferenceTree) {
-    $element['#attached']['library'][] = 'materio_admin/term_reference_tree';
-  }
-}
-
 /**
  * Implements hook_page_attachments().
  *
  * Loads the general admin table styling on every admin route (compact
  * paddings + constrained widths, replacing the old matminimal rules).
+ *
+ * Also loads the term reference tree widget layout (selection tree left,
+ * sortable track list right) on admin routes. Attaching it here instead of
+ * hook_field_widget_single_element_form_alter() keeps the widget element's
+ * own #attached libraries intact: setting #attached in that alter hook
+ * prevented FormBuilder's element-info defaults merge ($element += $info)
+ * from applying the checkbox_tree element #attached, which silently dropped
+ * term_reference_tree/term_reference_tree_js and _css.
  */
 function materio_admin_page_attachments(array &$attachments) {
   if (\Drupal::service('router.admin_context')->isAdminRoute()) {
     $attachments['#attached']['library'][] = 'materio_admin/admin_tables';
+    $attachments['#attached']['library'][] = 'materio_admin/term_reference_tree';
   }
 }