Error loading freesurfer anatomy folder

It doesn't make sense to me why the T1.mgz isn't seen although it is in the folder.?

No, it doesn't make sense.

Yes I confirm that this is indeed the error message I get

Just to make sure I replicate this exactly:

  1. On a Windows computer, you untar the file you just sent me with 7-zip
  2. In Brainstorm, you create a new subject
  3. Right-click on the anatomy folder of the subject > Import anatomy folder > Select file format "FreeSurfer folder" and select top-level folder "SavBen1" (and not any of its subfolders)