Sorry, I've been testing this more and I think that it is with in our code that I'm doing something wrong that is causing this issue not how I'm writing the rules. Probably with updating the psudo-clock time in the wrong spot. Is it ok if I ask a related question? Is there a way to accumulate multiple values at once? The way I've written the rule now we first collect a set of objects then try to find the min, max and/or average values of some fields as well as creating a string of all the 'name' components. Is it possible to write an accumulate function that can calculate multiple values at the same time? This is what I'm doing now. It seem in efficient.... // ... removed the includes.... dialect "java" declare SIGINT_track @role(event) @timestamp(time) end rule "Rule_87_0_Find" when $LaunchpadA: Launchpad ( ) $SIGINT_trackA: ArrayList( size >= 3, size <= 5) from collect( $SIGINT_trackA_list : SIGINT_track ( eval(distLess(location, $LaunchpadA.location,2000.0)) ) over window:time(7200000ms) ) $MIN_SIGINT_trackA_time: Number() from accumulate( $i: SIGINT_track() from $SIGINT_trackA, min($i.time)); $TEXTLIST_SIGINT_trackA_name: String() from accumulate( SIGINT_track($id: name) from $SIGINT_trackA, init(ArrayList ids = new ArrayList();), action( ids.add($id); ), reverse( ids.remove($id);), result(converter(ids)) ); $MIN_SIGINT_trackA_time: Number() from accumulate( $i: SIGINT_track() from $SIGINT_trackA, min($i.time)); $AVERAGE_SIGINT_trackA_time: Number() from accumulate( $i: SIGINT_track() from $SIGINT_trackA, average($i.time)); then // debug print statement to see if we are getting here System.out.println("Rule 87 " + $TEXTLIST_SIGINT_trackA_name); // ... code to do stuff in our system end -- View this message in context: http://drools.46999.n3.nabble.com/Missing-results-with-multiple-time-rule... Sent from the Drools: User forum mailing list archive at Nabble.com.