Peerconnection/pc1 sample not fully functional in mobile browsers on iOS

The demo at https://github.com/webrtc/samples/tree/gh-pages/src/content/peerconnection/pc1 provides two video streams when the webpage is ran on a laptop but does not fully work on mobile browsers in iOS. Only the first video stream (left hand side) produces a video. No video stream (on the right hand side) is displayed after pressing the call button is pressed. I have tested it on both Chrome and Safari on iOS.

iOS version: 18.4.1 Chrome for iOS version: 136.0.7103.42 Safari for iOS version: 18.4.1

There are no errors reported in the console.

Appreciate any insights anybody has on this.

Corey