diff --git a/playground/matplus/yet-another-pm/yet-another-pm.bpmn b/playground/matplus/yet-another-pm/yet-another-pm.bpmn
index 5864415e..4b9bf210 100644
--- a/playground/matplus/yet-another-pm/yet-another-pm.bpmn
+++ b/playground/matplus/yet-another-pm/yet-another-pm.bpmn
@@ -4,6 +4,7 @@
     <bpmn:participant id="Participant_1r0menu" processRef="Process_yet_another_pm_qsehp45" />
     <bpmn:participant id="Participant_1sezpy6" name="2. Pool" processRef="Process_0htokku" />
     <bpmn:messageFlow id="Flow_0wxv1pg" name="123&#10;" sourceRef="Participant_1sezpy6" targetRef="Participant_1r0menu" />
+    <bpmn:messageFlow id="Flow_0431ugz" sourceRef="Participant_1r0menu" targetRef="Participant_1sezpy6" />
   </bpmn:collaboration>
   <bpmn:process id="Process_yet_another_pm_qsehp45" isExecutable="true">
     <bpmn:startEvent id="StartEvent_1">
@@ -184,6 +185,12 @@ You can also change the text you are reading here by updating the *Instructions*
           <dc:Bounds x="227" y="302" width="19" height="27" />
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_0431ugz_di" bpmnElement="Flow_0431ugz">
+        <di:waypoint x="707" y="280" />
+        <di:waypoint x="707" y="305" />
+        <di:waypoint x="620" y="305" />
+        <di:waypoint x="620" y="330" />
+      </bpmndi:BPMNEdge>
     </bpmndi:BPMNPlane>
   </bpmndi:BPMNDiagram>
   <bpmndi:BPMNDiagram id="BPMNDiagram_0qm42uu">