I am simply creating pdf by taking the screenshot of the dashboard using headless chrome which render my URL of dashboard. But sometime, the widgets in the screenshot of the dashboard show no data they came just blank while the widgets in dashboard have data. Moreover, only starting widgets have this problem, if we scroll the screenshot and check below the scroll widgets they always have data. This problem is happening only with the starting widgets, the widgets contain timeSeries, pie, gauge, health(Highcharts).
The widgets should show data every time in pdf report if the widgets have data in the dashboard, there should be no blank widgets.
The issue is intermittent but it occurs, the cluster has three-four instances of the server running this service which opens and renders the url of dashboard and then captures the content of the dashboad and convert it to PDF.
enter image description here
It is visible in the image that starting wigets are blank while they actually have data
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