Hi John Kroll,
Greetings. Thank you for posting the thread to our community.
I understand your concern, it seems you cannot move your Live Presentation forward in Teams. For the situation you’ve encountered, I do understand the inconvenience caused and feel very sorry about it.
After my test, I’m afraid and sorry to say that this issue isn’t happening on my side. Due to this situation, I’m afraid this is a temporarily server-side issue needs to be investigated from back end to find the cause. **The support team has higher permission to remotely assist you and collect background logs for the root cause.**This is a more efficient way in handling this case for you.
If you are an admin, I recommend you get support by following steps from this link: Get support - Microsoft 365 admin | Microsoft Learn.
If you are not an admin, you can contact your admin to contact Microsoft support. You can look for the way to find your admin through this link: How do I find my Microsoft 365 admin? - Microsoft Support
Appreciate for your patience and understanding.
Hope you having a nice day.
Sincerely,
Harry | Microsoft Community Moderator