HP uCMDB 9.05 Pattern Based Model Loading Issue



Could anyone advice how to rectify our issue in one particluar Pattern based Model which is created to Capture an Entire Line Of Service of our client as Business Service ,We have huge number of  IT Services beneath it and then we have Busisness Application below it and next comes the Huge number infra elements ,no matter what this particular model when we select from Modelling Studio to peform updates or changes it wouldnt Open ,Questions are Below


1. How exactly the Pattern Based Model works .


2. How any Patter Based Populates its underneath elements when loaded in Modelling Studio


3.Is there any Infrastructure settings tweaking should be performed from our side


Thanks In advance