$file_info[$key] means file name here, it can be duplicate. Do you want to use the $key directly, which is the itemId

[chenxizhang]

https://github.com/code365opensource/microsoft.security.toolkit/blob/600afdfc0c34d3d68ba6cbf15aeac5e7efd3666c/Public/New-SecurityScan.ps1#L66C30-L66C46