Could you please open a jira to report this issue? 5.4 had several issues, 5.5 will be released soon. Thanks Davide -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Rule-Evaluations-are-Inconsistent-tp4019900p4019903.html Sent from the Drools: User forum mailing list archive at Nabble.com.