Customized fields mapping with community builder

I use Customized fields mapped with Community Builder ones. When I define a field as a list, it's not possible to define the field as read only and although the list is defined with possible multiple value only the first one is mapped.
Is it a bug or a restriction?
Thanks in advance for your help

Hi Parcy

Not a bug but that's how readonly works. For a list field, it is not possible to make it readonly. We can only mark it disabled. But making it disabled will prevent data for that field from being submitted to server, so the data will be lost when saving

If you want a readonly field, I think you will have to use a Text field instead

Regards,

Tuan