URGENT!!!! I NEED HELP WITH COPILOT ATT DESIGN TEAM!!!!!!!

I am reporting a serious and urgent issue with Microsoft Copilot. Over the past two weeks, I uploaded more than one thousand documents into a single Copilot conversation. These files were used for an ongoing, multi‑chapter historical and genealogical project.

Without warning, the entire conversation disappeared from my chat history. Because Copilot ties uploaded files to the specific conversation thread where they were added, the disappearance of the thread has made every one of those files inaccessible.

Nothing in the interface warned me that:

• conversations can be wiped or hidden without user action
• uploaded files do not persist outside the original thread
• losing a thread means losing access to all associated documents
• there is no recovery mechanism for deleted or missing conversations

This resulted in the effective loss of two weeks of work and over a thousand uploaded documents.

I need the design team to understand the severity of this issue. Users must have:

1. A guaranteed way to preserve conversations that contain uploaded files
2. A way to recover or restore deleted or missing threads
3. A central location where all uploaded files can be accessed, regardless of thread
4. Clear warnings that files are tied to a single conversation and will be lost if that thread disappears

This is not a minor inconvenience — it is a critical data‑loss problem that affects trust, usability, and the viability of Copilot for long‑form or research‑heavy work.

Please escalate this issue to the engineering and product teams. I need a way to recover my missing conversation or at least regain access to the files I uploaded.

Thank you.