message: fix: Prevent TypeError on undefined values
diff: @@ -607,7 +607,8 @@ function addEmptyNodes (nodes) {
  node_id: i,
  type: i === 0 ? 'Main controller' : '',
  status: i === 0 ? '' : 'Removed',
  - failed: true
  + failed: true,
  + values: {}
  }
  }
  }
  