>Mind, that you acquired a s1p file, but are using a 2-port-symbol.
>It would not surprise me, that this gives random results. You can edit the number of ports in that block’s properties.
I saw the other forum post. That is seemingly needed, if you have complex port impedances.
Still, I don’t see how this is needed in your case.
PS: I could not edit my last post. Seemingly the edit button is sometimes shown and sometimes not.