title: Twilio video onParticipant{Disabled}VideoTrack Freezes Video
body: <p>I have used <code>twilio-video:1.19.2</code> in angular 8.</p>
  
  <p>I have implemented functionality of one-to-one video call.</p>
  
  <p>Below is my code i use to enable/disable video.</p>
  
  <pre><code>toggleVideo() {
      this.videoConference.isPaused = !this.videoConference.isPaused;
      this.twilioRoom.localParticipant.videoTracks.forEach(track =&gt; {
          if (this.videoConference.isPaused) {
              track.disable();
          } else {
              track.enable();
          }
      });
  }
  </code></pre>
  
  <p>Video call seems to work fine. But when i pause video on participant side only some time <strong>black screen</strong> is displayed. Most of time it <code>freezes video</code> (last recorded frame stays).</p>
  
  <p>This issue is reported on react-twilio library <a href="https://github.com/blackuy/react-native-twilio-video-webrtc/issues/165" rel="nofollow noreferrer">https://github.com/blackuy/react-native-twilio-video-webrtc/issues/165</a></p>
  
  <p>Does anyone know how to resolve this?</p>
  
  <p>Is there any way to add black(video track) screen?</p>
  
  <p>I want to show black screen when video is paused from participant side.</p>