try fix

package.json

 {
     "name": "react-ag-qeditor",
-    "version": "1.0.66",
+    "version": "1.0.67",
     "description": "WYSIWYG html editor",
     "author": "atma",
     "license": "MIT",

src/QEditor.jsx

@@ -459,7 +459,7 @@ const QEditor = ({
     const editor = useEditor({
         extensions: [
             StarterKit,
-            Underline,
+            // Underline,
             // Image,
             ImageResize,
             // CustomImage,