@canvascharterx,
It seems like you are rendering the chart before getting the data. Moving this.chartOptions.data = series;this.chart.render(); inside the subscribe callback function should work fine in your case.
If you are still facing the issue, kindly create sample project reproducing the issue and share it with us over Google-Drive or Onedrive along with sample data so that we can look into your code, run it locally at our end to understand the scenario better and help you out.
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Manoj Mohan
Team CanvasJS
