The FAQ made it clear.
"lmmune to lnfluence: This model ignores effects
that require the use of Wp when defending in a
Duel." From the rulebook.
"Replace description with: “This model is immune to Wp
Duels when it is the defender.” From the FAQ"
"The Box Opens: Models within 12' of this
model lose any immunities to Wp Duels."
So yes, pandora can touch constructs.