Logfile Pattern Analyzer returns no hits

I’m simply using the “Try Pattern Match” at this point, but an example is:

Hostname: A Windows Host
Logfile: System
Text to Match: .*Group Policy.*

When I grep the same log I get 42 entries of the following message:
grep ".*Group Policy.*" System
C Feb 24 15:43:43 0.1030 Microsoft-Windows-GroupPolicy The processing of Group Policy failed. Windows attempted to retrieve new Group Policy settings for this user or computer. Look in the details tab for error code and description. Windows will automatically retry this operation at the next refresh cycle. Computers joined to the domain must have proper name resolution and network connectivity to a domain controller for discovery of new Group Policy objects and settings. An event will be logged when Group Policy is successful.