Problem with Wire-MOM simulation of loop antenna

Hi everyone
i am new to this group. I have been trying to simulate the electric field(E(phi)) for an infinitesimal loop antenna in the far field. The software used is Wire-MOM. But the simulations show a considerable value for E(theta) component. As per my knowledge, the theta component of electric field is zero for a loop antenna(in the far field). Can anyone explain this please?

Thanks