Coverage not getting hit when trying with IUS simulator

Hi

I am seeing discrepancy in cover bins getting hit , I have total 10 cover bins out of which valid 8 get hit with VCS , however with IUS none of my valid bin gets hit.

I have put display prints to see whether "values" are being received in monitor call back file or not, I see that prints are coming with correct values for both IUS and VCS , however the bin doesn't get hit, when seen with imc -gui tool.

Please can anyone help in this regard.

Regards

Anika