n/a scores on leaderboard

Hi,

There seems to be an issue with unevaluated tasks or missing scores.

If we look at the scores of submission ID 18231 on competition https://www.codabench.org/competitions/880/ we have:

Task 1/12: N/A
Task 2/12: 0.5249526350152358
Task 3/12: 0.4500405614331665
... 

Reruning two times I first got (ID 18289):

Task 1: N/A
Task 2: N/A
Task 3: 0.4500405614331665 

then (ID 18302):

Task 1: 0.49426542068915713
Task 2: 0.5249526350152358
Task 3: N/A 

The scorer is working successfully with this submission on my laptop.

I thought it could be related to https://github.com/codalab/codabench/issues/1055 since the leaderboard was set to "Force latest multiple" but I switched it to "Add and delete multiple" before trying a third rerun and still got N/A values. Also the inconsistency make me think it is a different issue.