diff --git a/includes/core/um-filters-navmenu.php b/includes/core/um-filters-navmenu.php
index 9f0572c1..6d463aee 100644
--- a/includes/core/um-filters-navmenu.php
+++ b/includes/core/um-filters-navmenu.php
@@ -63,6 +63,13 @@ if ( ! is_admin() ) {
 		//other filter
 		foreach ( $menu_items as $item ) {
 			if ( empty( $item->ID ) ) {
+				// Left item with empty ID for the cases like in MegaMenu when generated submenu doesn't have the menu item ID.
+				if ( ! empty( $item->is_mega_menu ) ) {
+					if ( isset( $item->menu_item_parent ) && in_array( absint( $item->menu_item_parent ), $hide_children_of, true ) ) {
+						continue;
+					}
+					$filtered_items[] = $item;
+				}
 				continue;
 			}