Hello All,  
  
I have a single Sources that makes 3 different types of parent entities. When these entities exit their first Server through the transfer node, 3 other Sources randomly create Uniform(1,4) of a New type of member entities. I have changed the priority of the member entities, with a on exit add on process, to be equal to the event number of this happening which matches up with the parent Entities with the same priority.  
  
With in the Combiner, I have the matching rule of 'Match Members and Parents' and both Member and Parent expressions of 'Entity.Priority'.  
  
I am still pretty new to Simio but can someone please help with why this might not be working?? Both types of Entities just build up in their respective input queues at the combiner and never combine.  
  
Please help, thanks!  
David