Version 12 Features (Preview Popup/Link Preview) Not working

ERPNext
1

Hi,

In ERPNEXT 12 new features like link preview is not working for me. Is the feature only applicable for new installs?

2

I found that show preview popup option is not there in my erpnext customize form

3

If you have access granted on the doctype for SELECT as well as READ then it will not work. Remove SELECT and try again.