macOS Catalina, Microsoft Teams, and Virtual Webcam (EpocCamHD)
How to get EpocCamHD (or other virtual cameras) working with Teams on macOS First, how I got started down the right path: Running teams from the Terminal gives more information: Cd /Applications/Microsoft Teams.app/Contents/MacOS .\Teams Find error that: /Library/CoreMediaIO/Plug-Ins/DAL/EpocCamPlugIn.plugin/Contents/MacOS/EpocCamPlugIn: code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/EpocCamPlugIn.plugin/Contents/MacOS/EpocCamPlugIn) not valid for use in process using Library Validation: mapping process and mapped file (non-platform) have different Team IDs /Library/CoreMediaIO/Plug-Ins/DAL/EpocCamPlugIn.plugin/Contents/MacOS/ EpocCamPlugIn: stat() failed with errno=1 Remove the code signing from the app and its helper and then it will work ****NOTE: This IS removing a security check so proceed at your own risk Open terminal with an administrative account then run these three commands separately sudo codesign --remove-signature /Applications/Microsoft\ Teams.app sudo codesign