Not getting board-relation columns from API

Hi all,

I’ve been wondering if someone might have an explanation for this:
I’m using a simple python module to retrieve board data from Monday.
The request I’m sending to https://api.monday.com/v2 is:

query
    {
        boards (ids: SOME-BOARD-ID) {
            id
            name
            permissions
            tags {
              id
              name
            }
            groups {
                id
                title
            }
            columns {
                id
                title
                type
                settings_str
            }
        }
    }

I’m getting all columns except for the one who’s type is board-relation.
Weird thing is that if I paste this query to the API playground I do get this column.
Any idea what causes this?

Thank you in advance.