Fillet edge not working on desired edge

Hello, beginner here. I’ve been using Grasshopper for a little under 6 months now and I’d like to think that I’m starting to understand the logics of it. However, I’ve been having trouble with a seemingly very basic component.
When I use Fillet Edge and fill in the edge parameter, the fillet happens on another edge; and even if I change the integer of my edge, it keeps on filleting only two edges at random.
What am I missing here?
Thank you in advance for the help!
Fillet edge.gh (7.0 KB)

hi @ClemenceBH you will need the convex edges component for this, which outputs the indices of the edges:

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Thank you so much, it works perfectly now! :smiley: