SharePoint 2007: Folders missing when using Upload Multiple Documents

Hi,

I have a problem with the "Upload Multiple Documents" feature in SharePoint 2007.

I have the following folder structure:

└───Folder
    ├───Subfolder1
    ├───Subfolder2
    ├───Subfolder3
    ├───Subfolder4
    │   ├───SubSubfolder1
    │   ├───SubSubfolder2
    │   ├───SubSubfolder3
    │   ├───SubSubfolder4
    │   ├───SubSubfolder5
    │   ├───SubSubfolder6
    │   └───SubSubfolder7
    ├───Subfolder5
    │   ├───SubSubfolder1
    │   ├───SubSubfolder2
    │   ├───SubSubfolder3
    │   ├───SubSubfolder4
    │   ├───SubSubfolder5
    │   └───SubSubfolder6
    ├───Subfolder6
    ├───Subfolder7
    └───Subfolder8

When I drag and drop "Folder" into the Upload Multiple Documents screen all the folders will come in the Upload screen except from the folder "SubFolder8". There is no error message saying what went wrong.

When I change the name of SubFolder8 to SubFolder0 (so it's not the last folder) it will upload all the folders.

When I remove 1 of the SubSubfolders the folder Subfolder8 will also be in the upload screen, even when I add a new SubSubfolder in SubFolder8. So it's not a limitation of folders.

Some more details of the folders and documents:

• Size: 25,6MB
• 62 Files, 21 Folders

I have full access to the documents and full access to the document library.

Does anyone have an idea why this is happening?

Kind regards,

Sen