Due to compatibility issues, certain computers or online meeting platforms may repeatedly attempt to take over the audio connection, causing your sound to default back to the online meeting.
To resolve this:
1) Configure the online meeting app to utilise a non-Bluetooth audio channel.
2) Should the earbuds fail to relay audio from the online meeting, manually reselect the Bluetooth AG channel in the meeting software. Alternatively, re-pair the earbuds by placing them in the case for 5 seconds and then reopen the case to reconnect.