@atularetecon-com,
Yes, it is possible to combine Range-Column Chart with Scatter Chart and it seems to be working fine at our end. Kindly check this JSFiddle for the same.
If you are still facing the issue, kindly create JSFiddle with sample data and share it with us so that we can look into the code, understand the scenario better and help you out.
—
Shashi Ranjan
Team CanvasJS