Missing camera icon

If the camera icon has disappeared from some Messenger contacts and you have checked that everything is enabled in the settings, here are a few steps you can try to resolve this issue:

1. **Update the App:** Make sure you are using the latest version of the Messenger app. Regular updates can fix bugs and improve stability.

2. **Restart the App:** Completely close the Messenger app and then relaunch it. Sometimes, this can resolve temporary issues.

3. **Update the Operating System:** Ensure that your operating system (iOS, Android) is also up to date. Compatibility issues can sometimes be resolved by updating the system.

4. **Check the Internet Connection:** Make sure you have a stable internet connection. Connectivity issues can sometimes affect certain features of the app.

5. **App Permissions:** Check the permissions granted to the Messenger app in your phone's settings. Make sure it has the necessary access to the camera and microphone.

6. **Uninstall and Reinstall the App:** If the issue persists, try uninstalling the Messenger app, restarting your phone, and then reinstalling the app.

7. **Compatibility Issues:** If the problem only concerns certain contacts, it may be specific issues with those accounts or their Messenger settings. You can ask them to check their settings and ensure they have not disabled the video conferencing feature.

8. **Technical Support:** If none of the above steps resolve the issue, it may be helpful to contact Facebook or Messenger technical support for more specific assistance.

In case of ongoing issues, there may be an anomaly with the app itself or its integration with certain accounts. Technical support teams are usually well-equipped to assist in such situations.