Hi, I use rules together with processes. One global process signals the TurnEvent to other processes in the working memory. declare TurnEvent @role(event) end Then, when started a process, which waits for TurnEvent another event is signaled - the ProcessWaitsForTurnEvent declare ProcessWaitsForTurnEvent @role(event) processId:Long end signalled in rule rule "Build Unit Process Waits For Turn" salience 50 when WorkflowProcessInstance( getProcessId()=="cz.muni.fi.civ.newohybat.bpmn.buildUnit" ,$processId:id ) not ProcessWaitsForTurnEvent(processId==$processId) then insert(new ProcessWaitsForTurnEvent($processId)); end Then there is the last rule which signals each TurnEvent for which there is ProcessWaitsForTurnEvent for a Process: rule "Signal New Turn" dialect "mvel" when $pi:ProcessWaitsForTurnEvent( $processId:processId ) TurnEvent(this after $pi) from entry-point "GameControlStream" then kcontext.getKnowledgeRuntime().signalEvent("turn-new",null,$processId); end On my machine, everything works fine. I tried that also on another, less powerful 32-bit machine and tests fails on following issue. When I run my test case, where I create the process the "Build Unit Process Waits For Turn" fires, ProcessWaitsForTurnEvent is inserted, but then I insert TurnEvent, "Signal New Turn" is not fired. I am quite desperate, cause I have even tried to set @expires attribute for ProcessWaitsForTurnEvent to prevent earlier expiration, with no succes. Any suggestion appreciated. Thanks. Jan