I had the same exact problem you had. I did all the chrome sync and everything, but nothing. For around 3 or 4 days after the TW update I could not get it to sync no matter what I did, so I finally left it alone after creating all my own bookmarks, and then all of a sudden it all sync'd. Not sure what happened but I had quit trying when it finally kicked in. Not sure if this helps, but just wanted to let you know that I had the same problem and it sort of fixed itself.