Pavel

Hi I have a bit unusual data source: items = [ { "Date": "11 Jun", "Crew A": 500, "Crew B": 600 } , { "Date": "10 Jun", "Crew A": 550, "Crew B": 650 } , { "Date": "9 Jun", "Unknown": 700, "Unknown": 500 } ]; I don't see last bars on the chart with "Unknown" key What I did wrong?