Robo 3T able to bypass MongoDB auth=true

Question

I used robo 3t to login to a database and was surprised that I was able to write on the collection despite having a read only role, by adding a document via the GUI or sending commands through Robo 3T.

What could be the problem? On mongosh (mongo shell) I wasnt able to.

tonidoclouddb> db.getRole("test", {showPrivileges:true}) 
{
  role: 'test',
  db: 'tonidoclouddb',
  isBuiltin: false,
  roles: [],
  inheritedRoles: [],
  privileges: [
    {
      resource: {
        db: 'tonidoclouddb',
        collection: 'users'
      },
      actions: [ 'find' ]
    }
  ],
  inheritedPrivileges: [
    {
      resource: {
        db: 'tonidoclouddb',
        collection: 'users'
      },
      actions: [ 'find' ]
    }
  ]
}

{
  _id: 'tonidoclouddb.mynewuser',
  userId: UUID("46bdf5e7-fb0a-4616-a1ee-5fc46fd0f97f"),
  user: 'mynewuser',
  db: 'tonidoclouddb',
  roles: [ { role: 'test', db: 'tonidoclouddb' } ],
  mechanisms: [ 'SCRAM-SHA-1', 'SCRAM-SHA-256' ]
} ```