Note that Search for Scores :each item’s Scorer:unique elements:count will not be an array of numbers but a single (scalar) number that is the count of ALL unique Scorer’s that are attached to any Score. (That is, it will be the SUM of what you are assuming you will get.)
So this approach is already a non-starter (as there is no way in vanilla Bubble to get the listwise count that you actually want).
You’re trying to do something that my Count Each Field/Sort action in Floppy can do though (try it out and if it doesn’t do what you need, I’ll add an option that makes that so). For a discussion of this issue, see this video:
… posted originally in the Floppy thread here: