I’ve been having the same problem. I went to the link you suggested, and It seems that checking the “Sync new children of partial folders” setting enabled under “Folder settings” got it going again…for now. I hope this fixes it. I’ve been struggling with this problem for days.
Edit: it worked for a few seconds, then stopped again.
Update #1 - 3/22/18: still stuck at 765 items queued/remaining. Restart gets it going long enough to sync a handful of files, but then it stops again. Linux Mint 18.3 Lenovo Z70/80 80FG.
Update #2 - 3/22/18: updated to 1.4.4.37065. Synced about 200 files and then stopped again at 562 waiting to sync.
Update #3 - 3/23/18: at first, all items finally synced. After moving more files into Google Drive, I’m stuck again with 220 files queued. 1.4.4 did NOT fix the problem. What can I provide to help get this problem fixed?