Empty Folders on new Computer Ohodnoceno 2 z 5 hvězdiček

This is a PAIN.
I have used Xmarks for a long time and it was working just perfect. Recently I rebuild a pc but Xmarks syncs the root level bookmarks and thn folders but NOTHING in the folders.
Sometimes on my laptop syncs for 30 minutes and nothing was added.
Xmarks; please sort this out
Frits