[Python] If you can see this, traffic is not passing through mitmproxy. Windows 11 error

I'm trying to install and setup mitmproxy but still have the error message: "If you can see this, traffic is not passing through mitmproxy." On http://mitm.it/

Here what I have:

• I download the source from https://www.mitmproxy.org/downloads/

And I launch it, I setuped everything like this video https://www.youtube.com/watch?v=MgbVy2PJ52c

But I still have the error "If you can see this, traffic is not passing through mitmproxy."

I have:

• Right version of mitmproxy
• Proxy windows: But... nothing...

BUT if I just wait (like 10 minutes) I have this random stuff:

But I still have:

And I guess my setup is good because when I launch mitm and spotify at the same time I have this good error



Can someone help me please ? I'm losing my mind. Thank you guys

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