Meta Service traffic graphs isn't workin

[iosman123]

Hi
I have created and a meta service to see aggregated traffic_out for multiple interface from two routers. I have validated and restart the service but can't see any graphs on web interface. Also newly created service isn't showing under Monitoring ==> Services ==> Meta Services, link is available under view ==> Graphs but there is no graph as well. California air tools 10020c

Thanks
iosman