page-layout-builder export import issue

I am using page-layout-builder plugin to build my layout on the fly.

It is working very well except that I am not able to import the exported layout from some other post. I am trying to use the layout in different pages, so I exported the layout and imported it in every pages that needed the same layout but it does not show any layout.

I have checked the database and it seems filled up with base64 encoded values. I think there is some issue with the nonce value which it is using for some other post.

Please help. Its urgent