Pathfinder 2 Skill question

[marroon69]

So creating a Goblin Street Urchin Rogue(thief) I have issues with skills... it seems Thievery is trained from two choices...I get a blue error at the bottom that says

Thievery: More than one option has made this skill trained (Street Urchin, Thief)

But I can not seem to change it or effect it?

Core Rule book page Page 233

"Sometimes you might gain training in a specific skill from multiple sources, such as if your background granted training in Crafting and you took the alchemist class, which also grants training in Crafting. Each time after the
first that you would gain the trained proficiency rank in a given skill, you instead allocate the trained proficiency to any other skill of your choice."

So I should be able to chose another skill but there are no boxes available in the row with under Street Urchin (which still says I have one choice left). So am I doing something wrong? or should I be able to choose a different skill?