Design of CPWG with sma connector

[MAYURA MURUGA PICHAI]

Hey everyone, I am new to HFSS, I am trying to simulate the behavior of taper transition for sma pad to cpwg structure. I have attached a female, through hole sma connector to my pre-existing structure and the behavior get's totally fucked when i add the imported sma model.

The structure works fine until I add the sma connector.

I have two ports, one on top of the imported sma connector model, the port is one the dielectric and the second port defined at the end of the cpwg. I have attached the images of the model and the graph below. Can someone please tell me what I'm doing wrong.

The images below are structure without sma connector, structure with sma connector from wurth electronik and the response of the structure with sma connector respectively.