Hi Sarah,
Welcome to Microsoft Q&A forum. I'm happy to help.
I'm really sorry to hear about the experience you had, especially when everything appears to be working normally during the session.
The 3‑hour limit you encountered is actually part of the current app design, and I am truly sorry for how restrictive that feels in real use. Your feedback is completely reasonable, and it highlights a real-world need that many others may share.
I really wish I could assist you directly on this issue. However, the behavior you're experiencing is tied to back‑end systems and service functionality, and unfortunately, we don't have the authority or access required to investigate or make changes at that level.
Please note that this is a user-to-user support forum. Moderators, contributors including external Microsoft employees cannot directly intervene in Microsoft product features or access back-end systems. Our role is limited to providing technical guidance on reported issues, requests, or ideas.
Given these limitations, the most appropriate avenue for product changes or feature requests is to:
As an alternative in the meantime, you might consider using a third‑party recording application that supports longer sessions.
Thank you for your understanding, and I hope the support team can resolve this for you soon.