Fails to render the statistics graph

[chabotsi]

When I am on the validation page and I click on the “statistics” icon, no graph appears, and I have the following messages:
TypeError: t.statisticsRendered.distinct is undefined and TypeError: t.statisticsRendered.threshold.total is undefined

[rhanka]

The statitics are a bit tricky and not that much documented.
Did you encounter the problem using https://matchid.io/advanced_tutorial ?

On a other usecase, It may be due to a configuration of the elasticsearch dataset, especially validation section and body.
If no body, putting here (or matchid.project@gmail.com) the settings of the index would help to solve this issue.