We are currently migrating our project from 6.5.0.Final-redhat-25 to 7.26.0.Final-redhat-00006 and struggling with a breaking change issue: ------------------------------------------------------------------------------------------------------------------------------------------- Key: DROOLS-5050 URL: https://issues.redhat.com/browse/DROOLS-5050 Project: Drools Issue Type: Bug Components: core engine Affects Versions: 7.33.0.Final Reporter: Marcell Pessanha Cruz Assignee: Luca Molteni Priority: Critical Alpha node based rules evaluated for expired events are not all executed during the inference cycle. With the following rules: {noformat} declare DummyEvent @role( event ) @timestamp( eventTimestamp ) @expires( 1s ) end rule R1 when $evt : DummyEvent() then end rule R2 when $evt : ApplicationEvent() then end {noformat} and this code to execute: {noformat} public interface ApplicationEvent { } public static class DummyEvent implements ApplicationEvent {...} /* .... */ final KieSession kieSession = kieBase.newKieSession( sessionConfig, null ); PseudoClockScheduler clock = kieSession.getSessionClock(); final long currentTime = clock.getCurrentTime(); clock.advanceTime(10, TimeUnit.SECONDS); kieSession.insert(new DummyEvent(10, currentTime)); kieSession.fireAllRules() {noformat} then only the *R1* rule is executed, not R2. Note: the same test case passes on 7.2.0.Final and earlier versions.