Vaadin 10: Column Chart Legends hide issue

Hi…I am using Vaadin 10.0.0. In column chart, while hiding legends, if there is no value for X-axis for specific legend then it will show -1/-2/etc… on X-axis. To find the root cause, I checked in high charts and followed the link https://www.highcharts.com/demo/column-basic. I attached screen shots for better understanding the issue.

  1. Chart1.png is the original chart
  2. Chart2.png is with the modified data
  3. Chart3.png is the issue screen shot, i.e. if we hide legends(Tokyo,New York,London), it shows X-axis as -1/-2 etc.

Please advise.

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