[Update 16.09.2014]

Microsoft replaced KB2889866 with KB2809931. more information here

[Update 12.09.2014]

Microsoft is investigating an issue that is affecting the September 2014 update for Microsoft OneDrive for Business. Therefore, we have removed the update from availability for now. We apologize for any inconvenience that this might cause.

 

With the September Update Microsoft delivers an update KB2889866 for OneDrive for Business.
As in the previous month provides the general description is not really worth knowing.
"… Stability and performance …"

Some problems should be fixed now

• Sync to Library and Error Messages
• OneDrive for Business not appear in favorites

old Version	new Version

 

a problem (with the August update installed) was also corrected. So a backup folder (empty) was created with me more then once a day, and especially when the PC was awakened from sleep mode. It  produces following:

This phenomenon does not occur after you install the update.