I’ve created a quiz and, based on the score, want a different ending to be shown. However, when I try to set this up, the endings aren’t showing in the list (see image) to let me link to them. It also won’t let me drag the arrows manually to the endings either.

I’ve filled in the scores under Quiz & Scoring > Score Quiz, and have tried linking from both a yes/no question and multiple-choice question, but neither will connect.
What am I missing?