I am able to render without errors in frontend, using npm run dev.

When I compile with npm run build and run it, it doesn’t render some things from a Fetch.

I Have a Parent Component, who sends these fetch data to a child component which renders it.

I have tested to change the api_url in the .env.production from the real backend IP (let’s imagin something like http:8.8.8.8) to http://localhost:3000 and it did work, it started rendering things.

Checking the Network tab, with localhost and with the real IP, with both IPs the data is fetched as expected.