StringsFromMaps not working?

Nokocchi

Greenhorn
I'm adding strings to a map, and while some of them are working, some of them aren't and I don't understand why. They all have the same prefix, they all visually look identical coding wise, so why only some are working doesn't make sense to me. Is there a limit to how many strings can be on a map? I can see the speech bubble/magnifying glass, but the tiles can't be interacted with.
 
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