In QAS 4.0.3 when workstation-mode is enabled and the user cache is empty due to a flush or new join then the command "vastool list users" will return the message "ERROR: Could not obtain list of users" and returns an error code of 255. Once any user has been cached the error is no longer returned.
Under VAS 3.5 no error was returned in this situation.
A workaround for this issue is to use the workstation-mode-users-preload option to keep at least one user in the cache at all times.
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