[rules-users] Temporal constraint not causing rule activation when using StatefulKnowledgeSession.update()

To demonstrate the issue I have simplified the following sample rule to just the components needed to demonstrate the issue. The example rule I'm posting here uses the "after" operator; I have also tried this same test with the before operator. In this sample the rule named "AfterRule" will activate if the facts are initially inserted in a state matching the pattern. However, if the facts are inserted in a state that does not match, and then later updated to match the pattern using StatefulKnowledgeSession.update() the rule will not activate. Consider the following DRL: package test.rules; dialect "java" import java.util.Date; import com.p1s.mps.model.RuleTime; import com.p1s.mps.model.Patient; declare RuleTime @role( event ) @timestamp( time ) end declare Patient @role( event ) @timestamp( birthDate ) end rule "AfterRule" when $now : RuleTime( ) Patient( this after $now ) then System.out.println("after"); end Separately in a unit test the following actions are performed: 1. Insert an instance of RuleTime into the session where time is set to now. 2. Insert an instance of a patient into the session where the birthdate is set to (now - 1 day). [This makes the birthdate in the past so the rule does not activate] 3. Call fireAllRules(). The rule does not activate, as expected. 4. Modify the patient instance to have a birthdate set to (now + 1 day). 5. Invoke update() on knowledge session. 6. Call fireAllRules(). The rules does not activate. It should activate here. If I change step 5 to a retract + insert then the rule will activate in step 6 as expected. Thank You, Nathan Bell