> ## Documentation Index
> Fetch the complete documentation index at: https://bigbluebutton.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Known Issues

> These are the known issues with using BigBlueButton.

<Frame>
  <img src="https://mintcdn.com/testcompany-0e915c76/cExlqsSZb6K5Dtdd/images/session-ended-message-after-user-left.png?fit=max&auto=format&n=cExlqsSZb6K5Dtdd&q=85&s=ec0571c316c0a90b112575221f8369a7" alt="Session ended message after user left" width="1352" height="346" data-path="images/session-ended-message-after-user-left.png" />
</Frame>

<Frame>
  <img src="https://mintcdn.com/testcompany-0e915c76/cExlqsSZb6K5Dtdd/images/webcam-settings-menu-with-video-preview.png?fit=max&auto=format&n=cExlqsSZb6K5Dtdd&q=85&s=d4319841bb5c7c41096633de9ebca44d" alt="Webcam settings menu with video preview" width="1238" height="852" data-path="images/webcam-settings-menu-with-video-preview.png" />
</Frame>

* **Audio and video in recordings out-of-sync.**  In BigBlueButton, the audio and video travel through two different channels.  In some recordings, they can be about a second out of sync.  A future update will transmit both audio and video on the same channel.
* **Connectivity issues with Spectrum Internet**.  We've seen issues with some customers of Spectrum Internet getting periodically disconnected after recent network updates.  The fix is to [disable IPV6](/help/troubleshooting/how-to-disable-ipv6) on their router. 
* **Safari Mobile (iPad/iOS) does not allow users to share their screen.**  Currently, neither Android or iOS devices implement the screen share API for the browser.
* **Error 1136: Permission to capture the screen needs to be granted** If your chrome is open, and it's half way through updating, then screen-share will not be recognized and you might get this error. To fix, restart Chrome (and let it finish updating) and then you will be able to screen share again.