move-item does not overwrite folder


I have an issue with moving folders.

simple string like "move-item -path c:\test -destination c:\tmp -force" gives output

Move-Item : Cannot create a file when that file already exists.
At line:1 char:10
+ move-item <<<<  -path c:\test -destination C:\tmp -force
    + CategoryInfo          : WriteError: (C:\test:DirectoryInfo) [Move-Item], IOException
    + FullyQualifiedErrorId : MoveDirectoryItemIOError,Microsoft.PowerShell.Commands.MoveItemCommand

(folder c:\tmp\test already exist)

I am local administrator, folders could be replaced via cmd or explorer easy.

Where could be an error?

Thank you,