DON'T UPGRADE TO CATALINA UNTIL YOU READ THIS!
We just got confirmation from Blackboard that upgrading to Catalina will likely prevent your camera from working in Collaborate. We still don't know how many Catalina users this affects. This means that if you're affected, your camera that shows your image to your participants or your classmates and professor won't work, but you can still participate in your lecture. For more information, please contact us here at the Sakai helpdesk, 831-656-2020 or go here for more information from Blackboard.