Rust Echo example: Receive stream spins infinitely

I’m trying to run the echo example with it’s associated front-end
Everything seems to work fine, no error in the console or the server’s terminal.
It’s saying it successfully created transports, producers and consumers. I can see the “Send preview” fine but not the “Receive preview”

How can I debug that ?

For those wondering, I completly rewrote the example using Warp and Tokio instead of Actix and it worked. I’m not sure where the issue comes from