Board Game Arena

In this game: https://boardgamearena.com/table?table=908234792

I don't understand how one set of dragonflies is worth 60 points and then a single separate card is worth 60 points. I only see the max of 50 for a set. Plus why would a separate card be worth 60 on its own? Is that just a display bug?

It's a display bug where the Exmoor dragonfly says "this card is worth xx points" and the original dragonflies all say "Your set of Dragonfly cards are worth xx" but there is no double counting

Good to know but why is the set worth 60 and not 50?