When using the wildcard-file() source within Syslog-ng PE, the base-dir() yields the following error:
Absolute Path Permission Error (13)
One of the directories in the path of the base-dir() does not have permissions set correctly.
Each directory in the absolute path of the base-dir() needs to ensure that the account running Syslog-ng PE has read access.
Please check the directory permissions and apply read-access as needed.