Timeseries graph doesn't show data when it is with step after interpolation when data exists

I have upgraded grafana to version 8. The time series panel with various interpolation looked great. But when I used the step after interpolation, graph is not showing any data. When I used linear interpolation for the same graph or when I expand the graph, I am able to see the data.
Did anyone experience this? Or Am I doing something wrong?
These are the images: