Terraform: InvalidArgument desc = Project member is invalid (PROJECT-3m9d)

resource "zitadel_project_role" "this" {
  project_id   = var.project_id
  org_id       = var.org_id
  role_key     = "super-user"
  display_name = "Administrator"
}

resource "zitadel_project_member" "this" {
  for_each = { for k, v in var.users : k => v if length(v.roles.project) > 0 }

  org_id     = var.org_id
  project_id = var.project_id
  roles      = each.value.roles.project
  user_id    = zitadel_human_user.this[each.key].id

  depends_on = [zitadel_project_role.this]
}