Invalid probe for a .measure statement where node also exist as port in one hierarchy above

Hello All,

Consider the following node in a .measure statement
V(segio.segio0.controls.xcontrols_opt/RDWEN_T)

Now when
1) RDWEN_T is signal above statement works.
2) when RDWEN_T is port is gives invalide probe. when I checked out in waveform viewever this port is there one hierarchy above(same same).

So what option I should use to make simulator understand ?

Thanks.

Using spectre-xps simulator