Zoom fails to launch when trying to Join Live Webinar from inside a Blackboard course.
There most likely has been an update made to the Zoom integration (called LTI) in Blackboard. Remove the bad link and add a new one.
- Delete from your Blackboard course the old link that failed.
- Use the "+" to add a Tool Link to the course menu. Select Zoom Webinar from the drop down menu.