I notice that on RPGGeek, the listing for Uncharted Worlds has duplication when I search those words. One has the Kickstarter graphic but the other has the final cover of the rulebook. You may want to correct things.
https://rpggeek.com/geeksearch.php?action=search&objecttype=rpgunified&q=uncharted+worlds&B1=Go
https://rpggeek.com/geeksearch.php?action=search&objecttype=rpgunified&q=uncharted+worlds&B1=Go
One is the “RPG” and one is the “RPG item” – it’s the way the database is organised to account for different editions, supplements, etc.