AEM assets Publish URL
Hello Team,
I am using AEM 6.5
On my PROD author, I am not able to see the "Publish URL" of assets even when my asset is published and "Copy Publish URL" button is available. On clicking of button it opens empty box.

On STAGE environment, it is working fine. I checked the externalizer config files for PROD and STAGE ad they are identical.
Can someone please suggest what can be the problem for this?
Thanks in advance