It's the same here. And when that is showing, the text in the location box (just below "File Explorer") is
Code:
::{20D04FE0-3AEA-1069-A2D8-08002B30309D}
... not very friendly.
You can get a computer name (in my case, "ZZ") by looking at the default value in
Code:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}
Maybe there's an API function to get a more reasonable string than the CLSID itself.