Recently, the ability to create Microsoft Teams Meetings directly in Brightspace was ended from the Microsoft plug-in.
Alternatively, you may wish to create your meeting links in Outlook first, then copy the links into a Content area or announcement in your course, or even a direct email to your students. For more information, please refer to Microsoft's Schedule a Teams meeting from Outlook page.
If you have a question or problem regarding adding Teams to your Brightspace course, please submit a ticket through the Learning Management System (D2L Brightspace) - Report an Issue/Ask a Question service.
Once you have Teams integrated into your Brightspace course and have a question or problem regarding using Teams Meetings, please submit a ticket through the Microsoft
Teams Meetings Assistance service.