I have this issue on Ignition 8.1.16
When I try to graph one line over stacked bars x-axis does not correspond to the expected value. I try using based interval but I show another day in labels.
Yes. Post the code for the chart using the </> formatting button. That way we can recreate the problem. It's usually not much use posting pictures of data as we can't copy and paste to try it out or modify it in our answers.
Remove the binding from the chart data temporarily, right-click on the chart in the Project Browser and copy into the forum. If you want to be really neat select all the code, hit the gear icon and select Hide Details.