Over the past few days, we’ve had several reports of texture uploads resulting in the wrong textures being uploaded to the residents inventory. You can find the according issue here in our http://jira.secondlife.com/browse/MISC-759
While we rolled out a fix for this tonight, one of our scripts failed, resulting in an about 30 minutes long unavailability of texture uploads.
Both issues are resolved.
We apologize for any inconvenience this might have caused and thank you for your patience!