Verify that the <em>States</em> list matches your planned states. You can add missing states by clicking <em>Add a new state</em>. You can edit or delete states by clicking <em>Edit</em> or <em>Delete</em> under <em>Operations</em> (if the <em>Delete</em> option is not available, you will first need to delete any <em>Transitions</em> to or from this state).