Result slide after question bank

Hello everyone,

I've created a big question bank with about 75 questions and decided to randomly choose 25 questions for the test. 

But whenever I complete the 25 questions, the result slide never appears, it keeps loading with the 3 dots.

I've already checked similar issues in the forum. My slides are well linked, and I think the result slide settings are right (see attached picture).

I can send the .story but only via private message if possible.

Thanks a lot,