diff --git a/src/Integrations/Divi/Pages/DiviDuplicateNodeAbility.php b/src/Integrations/Divi/Pages/DiviDuplicateNodeAbility.php
index 02d9d90..88aa8cc 100644
--- a/src/Integrations/Divi/Pages/DiviDuplicateNodeAbility.php
+++ b/src/Integrations/Divi/Pages/DiviDuplicateNodeAbility.php
@@ -7,7 +7,6 @@ namespace LIT\MCP\Integrations\Divi\Pages;
 use LIT\MCP\Abilities\Ability;
 use LIT\MCP\Abilities\ToolResult;
 use LIT\MCP\Integrations\Divi\BlockTree\AttrMap;
-use LIT\MCP\Integrations\Divi\BlockTree\NodeSummary;
 use WP_Error;
 
 /**
@@ -86,10 +85,16 @@ final class DiviDuplicateNodeAbility implements Ability
 
         $copy = $this->writer->composition($page)->editor()->duplicate($page->index, $node);
         if ($copy->isDivi() && ! $copy->isOpaque()) {
-            $label = NodeSummary::label($node);
-            $copy->setAttrs(AttrMap::set($copy->attrs(), 'module.meta.adminLabel', [
-                'desktop' => ['value' => ($label === '' ? $node->shortName() : $label) . ' (Kopie)'],
-            ]));
+            // The raw stored desktop value (never NodeSummary::label()'s display-shortened
+            // text): a long or multi-line label must be copied verbatim, only " (Kopie)" added.
+            // Setting only the ".desktop.value" leaf keeps every other breakpoint untouched.
+            $raw = AttrMap::desktop($node->attrs(), 'module.meta.adminLabel');
+            $label = is_string($raw) ? $raw : '';
+            $copy->setAttrs(AttrMap::set(
+                $copy->attrs(),
+                'module.meta.adminLabel.desktop.value',
+                ($label === '' ? $node->shortName() : $label) . ' (Kopie)'
+            ));
         }
 
         $change = (new DiviChange(sprintf('Knoten %s dupliziert', $id)))->changed($copy, 'duplicated');
diff --git a/tests/Unit/Integrations/Divi/Pages/DiviWriteAbilitiesTest.php b/tests/Unit/Integrations/Divi/Pages/DiviWriteAbilitiesTest.php
index ca60114..9aa40ca 100644
--- a/tests/Unit/Integrations/Divi/Pages/DiviWriteAbilitiesTest.php
+++ b/tests/Unit/Integrations/Divi/Pages/DiviWriteAbilitiesTest.php
@@ -7,6 +7,7 @@ namespace LIT\MCP\Tests\Unit\Integrations\Divi\Pages;
 use Brain\Monkey\Functions;
 use LIT\MCP\Abilities\Rev;
 use LIT\MCP\ChangeLog\ChangeLog;
+use LIT\MCP\Integrations\Divi\BlockTree\AttrMap;
 use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
 use LIT\MCP\Integrations\Divi\BlockTree\Parser;
 use LIT\MCP\Integrations\Divi\Design\DesignSystemReader;
@@ -458,6 +459,60 @@ final class DiviWriteAbilitiesTest extends TestCase
         self::assertSame(str_replace($globalRow, $globalRow . $globalRow, $mixed), $this->saved[0]);
     }
 
+    /**
+     * Fix round 1 (Important-1): the copy's admin label must be the raw stored desktop value
+     * plus " (Kopie)" – never NodeSummary::label()'s display-shortened text (80-char limit).
+     */
+    public function testDuplicateCopiesALongAdminLabelVerbatim(): void
+    {
+        $long = str_repeat('Ausführliche Beschriftung, ', 4) . 'Ende';
+        self::assertGreaterThan(80, strlen($long), 'precondition: longer than the NodeSummary::label() display limit');
+        $content = str_replace(
+            '"module":{"meta":{"adminLabel":{"desktop":{"value":"Hero – Button"}}}}',
+            '"module":{"meta":{"adminLabel":{"desktop":{"value":"' . $long . '"}}}}',
+            $this->original
+        );
+        self::assertNotSame($content, $this->original, 'precondition: replaced exactly once');
+        $this->post->post_content = $content;
+
+        $result = $this->duplicate()->execute(['post_id' => 7, 'tree_rev' => Rev::of($content), 'id' => 's0.r0.c1.m2']);
+
+        self::assertTrue($result['ok'], (string) json_encode($result));
+        $index = NodeIndex::build((new Parser())->parse($this->saved[0]));
+        $copy = $index->find('s0.r0.c1.m3');
+        self::assertNotNull($copy, 'the duplicate sits right after the original module');
+        self::assertSame(
+            $long . ' (Kopie)',
+            AttrMap::desktop($copy->attrs(), 'module.meta.adminLabel'),
+            'stored verbatim, not shortened/ellipsised for display'
+        );
+    }
+
+    public function testDuplicateCopiesALabelWithNewlinesAndMultipleSpacesVerbatim(): void
+    {
+        $messy = "Erste Zeile   mit   viel  Leerraum\nZweite Zeile";
+        $encoded = substr((string) json_encode($messy, JSON_UNESCAPED_UNICODE), 1, -1);
+        $content = str_replace(
+            '"module":{"meta":{"adminLabel":{"desktop":{"value":"Hero – Button"}}}}',
+            '"module":{"meta":{"adminLabel":{"desktop":{"value":"' . $encoded . '"}}}}',
+            $this->original
+        );
+        self::assertNotSame($content, $this->original, 'precondition: replaced exactly once');
+        $this->post->post_content = $content;
+
+        $result = $this->duplicate()->execute(['post_id' => 7, 'tree_rev' => Rev::of($content), 'id' => 's0.r0.c1.m2']);
+
+        self::assertTrue($result['ok'], (string) json_encode($result));
+        $index = NodeIndex::build((new Parser())->parse($this->saved[0]));
+        $copy = $index->find('s0.r0.c1.m3');
+        self::assertNotNull($copy, 'the duplicate sits right after the original module');
+        self::assertSame(
+            $messy . ' (Kopie)',
+            AttrMap::desktop($copy->attrs(), 'module.meta.adminLabel'),
+            'whitespace/newlines kept verbatim, not collapsed'
+        );
+    }
+
     /** Permission denied (edit_post false) for all three new abilities. */
     public function testPermissionDeniedWhenNotEditable(): void
     {