s_leu
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaPreviewTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaPreviewTest.php
    // want to verify that Media preview responses are cached on the client side
    // so it is essential that rerendering occurs. To achieve this, we append a
    // single space.
-    $source_text_area = $this->getSession()->getPage()->find('css', '[name="body[0][value]"] + .ck-editor textarea');
-    $source_text_area->setValue($source_text_area->getValue() . ' ');
-    $this->pressEditorButton('Source');
-    $this->assertNotEmpty($assert_session->waitForElementVisible('css', 'img[src*="image-test.png"]'));
-    $this->assertSame(0, $this->getLastPreviewRequestTransferSize());
+    // @todo re-enable this once https://www.drupal.org/project/drupal/issues/3395776