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• use carefully the "Load all" option especially if "Hide Test Runs" is unchecked (this option is available at the top-right side of the report page);
• hide Test Runs column in the report, if the number of runs is considerable high (e.g. > 1000);  the amount of information may overload your browser and it will be hard for you to analyze the report with all that information.

Examples

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 Note: Requirements with Labels or Statuses configured to be ignored in the Requirements Coverage settings will not appear on this report.

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