Hi,
Have you tried going to settings/Accounts & Sync/ click on your GMail account, click the link then "Remove account".
Once it is removed, re-add your GMail account then reboot. Go settings/ Accounts & Sync then hit Sync now.
I had tried that, and it didn't work either. But I did fix the problem right before I left work yesterday, what a pain though...
-Backed up my Chrome bookmarks on my PC, signed out on my browser and deleted ALL my bookmarks. I did this on my work PC and home PC (via rdp).
-Then on my phone (and tablet), I unchecked sync browser, cleared the browser cache and data.
-Then went to my Google Dashboard and stopped the syncing and cleared the Chrome data from the Dashboard. Ctrl-F5 and Chrome data gone from the Dashboard.
-Next was to restore my bookmarks on my work PC and closed and opened Chrome to start the sync. Ctrl-F5 and all my Chrome info is now showing again in Dashboard.
-Finally, turn my phone on 4G and sync the browser. Wait for about 2 hours, done and synced!
Granted it was syncing ~600 bookmarks, but I didn't expect it to take
that long since it is near instant with the PC, on a slower connection than my 4G. Tablet synced up the bookmarks fine after all that too...
So to sum it up, if anyone has a bookmark sync issue, clear
all bookmarks from all browsers and the Google Dashboard, start fresh and be very very patient during the initial sync.