Hiden field and Default value

Hello,
I’m trying, as admin, to store information about my members. They are not supposed to access it. To do so, I created custom fields in the Profile Form that only show up for admins (using your Privacy dropdown). I also used Default Values for those fields.

So I’m the only one to see those fields, the only one to edit them and they have default values.
And it seems to work.

My problem is, when I export wp_usermeta (with Export User Data plugin), the “default values” doesn’t show up in my file. They are blank.
They appear only if I (as admin) edit the member’s profile. I don’t even need to change anything, just “edit” “done”.
But I don’t want to edit every account… “Default Values” would be useless if I had to do so.

I hope you can help me with this issue.

Thank you

Victor

https://wordpress.org/plugins/ultimate-member/