Cannot Add Additional content in a Notebook Paragraph

[#1]

I am unable to add another paragraph with more content in a notebook. I can add short notes but when trying to add to long code in the new paragraph in a notebook It is not adding any more.

I tried increasing the zeppelin.websocket.max.text.message.size property value to 30720000. but it didn't helped. 

From logs I see the following error:

 NotebookServer.java[onMessage]:365) - Can't handle message: {"op":"INSERT_PARAGRAPH","data":{"
index":15},"roles":"[\"zeppelin_admin_role\"]"}

Can someone help me with this.

[#2]

@Pamarthich Can you share a complete stack trace of the error

[#3]

Hi Charan,

Thanks for the reply. We found the issue and it is because one of our third party security tool is blocking the code syntax.