Display 1335 and 1378 error in await when editing async block

<img width="1052" height="230" alt="Image" src="https://github.com/user-attachments/assets/202026b3-180f-449a-88e0-9a99e9a91819" />

Some block may display this error.
Is _monacoConfig.languageService_ edit **failed**?
IDK, need fix future