Are you Teams meeting organizer?
To check if this issue is persist only on yourself, you could try to assign another person's permission to edit the presenter and see if this issue can be reproduced.
If there is no issue for other users, then try to login in Teams web client to see if it works for you.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.