Generate random, unique id and store in protected variable.

src/LayoutParagraphsLayout.php

@@ -53,6 +53,13 @@ class LayoutParagraphsLayout implements ThirdPartySettingsInterface {
    */
   protected $settings;
 
+  /**
+   * The layout ID.
+   *
+   * @var string
+   */
+  protected $id;
+
   /**
    * Class constructor.
    *
@@ -76,11 +83,10 @@ class LayoutParagraphsLayout implements ThirdPartySettingsInterface {
    *   A unique id.
    */
   public function id() {
-    $uuid = $this->getEntity()->uuid();
-    $langcode = $this->getEntity()->language()->getId();
-    $field_name = $this->getFieldName();
-    $id = Crypt::hashBase64($uuid . $langcode . $field_name);
-    return $id;
+    if (empty($this->id)) {
+      $this->id = bin2hex(random_bytes(16));
+    }
+    return $this->id;
   }
 
   /**