Critical OneDrive Data Loss – Files Disappeared Without Any Trace While Folder Still Exists

I am experiencing a serious data loss issue in OneDrive.

One of my folders ("PHOTOGRAPHER") and all its subfolders still exist, but ALL files inside have disappeared completely.

Important facts:

• Files were uploaded and confirmed to exist
• No deletion activity in logs
• Nothing in Recycle Bin
• Restore OneDrive does not recover them
• Personal Vault was never used

This is NOT a user error and NOT a typical missing file issue.

I have already contacted support multiple times, but I keep receiving the same template troubleshooting steps without any real investigation. My case was even closed without resolution.

This appears to be a sync overwrite, corruption, or system-level data loss.

As a paying customer, this raises serious concerns about data integrity and reliability of OneDrive.

Has anyone experienced this before?

Is there any way to recover data beyond the standard user tools?

How can this be escalated to engineering level?

This is critical data for me and I would really appreciate serious guidance.

NB : I have attached a screenshot of the folder structure, including multiple subfolders, to clearly show that the folders still exist while all files inside them have disappeared.