If several copies of the same Treachery card are in one skill check, do their effects stack?

Question

Accepted Answer

No. Only one copy of each Treachery card resolves its effect in a check, so two copies that each deal a Mutiny deal one Mutiny. Treachery that adds cards to the Destiny deck triggers once per check.

Battlestar Galactica: The Board Game

If several copies of the same Treachery card are in one skill check, do their effects stack?