@twitchy,
Stacked Charts are plotted when multiple column/area charts with same x values are plotted on same scale. Assigning same x-values along with names should work fine in your case. If this doesn’t solve your issue, kindly share sample project reproducing the issue you are facing along with sample database over Google-Drive or Onedrive, so that we can run the project locally, understand the issue better and help you out.
—
Vishwas R
Team CanvasJS
