Data is coming through correct I can see that from debugging, But chart is not showing up at all its only white space.
At the chart block call the OnParameterChanged event and put the OnReady action in it to draw the chart again with the new data.
if it does not work please share the oml file?
Unfortunately, It's a company project and very large so I cannot share the OML file but adding the On Parameter change did help the chart to show up now so thank you!
Most welcome