I use Backup exec 2010 R3.
Trying to backup TeamCity (http://www.jetbrains.com) server files and folders but it keeps getting errors on folders which exists.
This happens always under "artifacts" folder and System state as well - all in the same server windows 2008 R2 server.
The option of Advanced Open File is checked (Use advanced Open File Option --> Automatically open file technology and Process logical volumes for backup one at a time).
Example of error code:
\\servername\System?State\ac24b2f6.10000.65f6 in use - skipped. File \ac24b2f6.10000.65f7 was not found, or could not be accessed.
Try to Uncheck the below options.
see the below article for the exact steps:
Please mark this as accepted solution if it solve your issue