This article applies for Mac OSX. For Windows OS refer to the Online Meeting: Managing Your Devices On Windows OS
Catalina and Screen Sharing
Important: MacOS Catalina introduced a new screen where you may need to grant access to screen sharing. You may experience a blank screen if you do not grant this access in Security & Privacy options.
To open this setting screen choose Apple menu > System Preferences
Then click Security & Privacy:
Choose the Privacy tab:
You must choose to Allow Online Meeting in this settings menu under Screen Recording as shown in the above screenshot.
Allowing your mic and cam on OSX
In a Meeting, you may check your mic, speakers and webcam under Settings > Audio & Video:
Choose your Mic and Speakers and see if your webcam is sending your video feed. Otherwise, check the drop down menu for your device to be listed.
To ensure your Mac OSX is in alignment with your choice in devices, navigate to System Preferences > Sound > Output and respectively go to System Preferences > Sound > Input to check your mic and speakers on your Mac.
If you encounter an error such as:
Check your device permissions in Privacy & Security under the Privacy tab:
Verify both Microphone and Camera for Online Meeting are checked.