Skydrive still not syncing in Win8.1 release version

Like others I discovered about a week ago that Skydrive in my preview version of Win8.1 had stopped syncing some files.  I tried several things and then decided that I'd wait till the release version of 8.1 arrived.  I've just completed installing the release version (no difficulties) and find that I still have the same problem.  I find this very worrisome as some of the files that aren't syncing are critical to my job.

Anomalies I've noticed that might contribute

• My timezone and calendar were changed at some point - not by me.  I was set to the proper time on the West coast of US, but I'm on east coast

What I Observe

• SD is functioning properly for some files in the same general path
  
• A sample file that isn't syncing is: D:\SkyDrive\Drexel SD\Academic\Admin_Plan\ABET 2012\Vist and Visitors\SChedule for Visitors 20131021a.xlsx
• A file in the path D:\SkyDrive\Drexel SD\Academic does sync properly.

Any help would be most appreciated.  This is a big problem for me.