Weird behaviour on synchronisation

Steps to reproduce:

• Create a workspace on server side and synchronize it
  => the empty folder is created in your nuxeo folder (works on my Mac side but not on my Windows).
• Import files (Flags.zip) with the import button in the synchronised folder.
  => Mac side the files are correctly added and synchronised in my nuxeo drive folder. On Windows nothing happens, I tried to quit Drive and restart or to suspend and resume but it doesn't change anything.

Bug report and files attached.