Ubuntu One won't sync certain files, even though they appear in the web interface

The Ubuntu One web interface shows me a folder full of files, but on my laptop these files do not appear in the corresponding folder. Any new additions to this folder are correctly synced, whether the change is made through the web interface or in the folder directly. But the other files are simply ignored as if they don't exist.

I have tried stopping and restarting the service, and forcing rescanning of folders but Ubuntu One just says it is up to date, while these files refuse to be downloaded onto my local machine.

Any ideas what I can try?


So after contacting Ubuntu One support, I was given the following steps:

  1. Stop Ubuntu One with: u1sdtool -q
  2. Delete the following folder: sudo rm -rf ~/.local/share/ubuntuone
  3. Restart Ubuntu One with: u1sdtool -c
  4. Open the Ubuntu One Control Panel and reselect my sync folders.

Step 4 gave me a prompt asking me if I wanted to merge my local folder with the cloud version of the same name. After clicking "Yes", it proceeded to resync everything from scratch, which took so long I left it overnight. I can't tell if it actually downloaded or uploaded anything, but anyway by the morning it said file sync was complete. At first glance this seemed ok, although I have no way of telling for sure if there are any more missing files elsewhere in my synced folder.

Anyway, hope this helps someone who encounters a similar problem.