Also consider building ones.

master/bt5/vifib_base/SkinTemplateItem/portal_skins/vifib_simulation/Alarm_updateCausalityState.xml

@@ -56,7 +56,7 @@ activate_kw = {\n
 }\n
 portal.portal_catalog.searchAndActivate(\n
   portal_type=portal.getPortalDeliveryTypeList(),\n
-  causality_state=\'calculating\',\n
+  causality_state=(\'building\', \'calculating\'),\n
   activate_kw=activate_kw,\n
   packet_size=1, # Separate calls to many transactions\n
   method_id=\'Delivery_updateCausalityState\'\n

master/bt5/vifib_base/SkinTemplateItem/portal_skins/vifib_simulation/Delivery_updateCausalityState.xml

@@ -51,7 +51,7 @@
         <item>
             <key> <string>_body</string> </key>
             <value> <string>delivery = context\n
-if delivery.getCausalityState() != \'calculating\':\n
+if delivery.getCausalityState() not in (\'building\', \'calculating\'):\n
   return\n
 \n
 if context.getPortalObject().portal_activities.countMessage(path=delivery.getPath()) == 0:\n

master/bt5/vifib_base/bt/revision

-426
\ No newline at end of file
+427
\ No newline at end of file