Jitsi meeting Subject does not appear in call

I have implemented Jitsi using the react-jutsu module:

<Jutsu
        subject="Subject"
        roomName="Room_name"
        displayName="UserName"
        onMeetingEnd={() => console.log("Meeting has ended")}
        loadingComponent={<p>loading ...</p>}
        errorComponent={<p>Oops, something went wrong</p>}
        onError={(error) => {
          console.log("🚀 ~ file: App.js ~ line 29 ~ App ~ error", error);
        }}
      />

The problem is that the subject name does not appear on top of the screen:

Any idea why is this happening?

It will be displayed once more participants join.