Line chart adding different measurments

I did a line chart, the objective is to show each measurment in different columns of the chart, but when theres more than 1 measurment of the same person at differents times, the chart adds both resulta and show them as one. How can I difference each measurment so they show it individually even if it is from the same person?

Thanks

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How do you expect the chart to look if you want to differentiate measurements from the same person?