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Leaderboard not well ordered

The leaderboard the validation phase of the following competition is not well ordered:

https://www.codabench.org/competitions/1219/

20230922

(the competition is private, if you need the secret URL please ask me)

UPDATE:

This problem is linked to another problem: the score in the tab "Submissions" (either participant tab or admin tab) does not reflect perfectly the score in the leaderboard.

This is likely due to the javascript rounding found in submission_manager.tag:

        self.get_score = function (submission) {
            try{
                return parseFloat(submission.scores[0].score).toFixed(2)
           [...]

It seems that javascript standard for floats is not precise. The order is based on the scores that you can find in the "Submissions" tab, not the actual scores. The leaderboard reflect the true score.

So, it is ordered by primary column, but using a bad rounding.