A search for answers for why some files just will not sync on some machines seems very promising and worked for me.

This recurring problem has apparently been solved. Especially so if you are getting the peculiar and undocumented 0x80040A41 error.

Possible SkyDrive Sync Fix for Windows 8.1 | Auri's Space

I had a little problem with restarting skydrive.exe, but after a machine restart all was well again with OneDrive.