In a Microsoft Skype for Business Server 2015 environment, you apply the March 2018 cumulative update for Skype for Business Server 2015 and enable Video-based Screen Sharing (VbSS) in Skype for Business. In this scenario, when you try to share your desktop during a conference, you may receive the following error message:
An error occurred during the screen presentation.
To work around this issue, refer to the following article to disable VbSS in Skype for Business Server.
To fix this issue, install the January 2019 cumulative update 6.0.9319.537 for Skype for Business Server 2015, Conferencing Server.