Prolonged engagement weapons won't equip as a set.

jaden22

When I try to equip the prolonged engagement weapons set to my ship, if I equip one of the weapons the other ones won't equip and disappears.

inferiority

Which weapons are you trying to equip?
You can equip the Torpedo, Console and ONE of the Energy weapons - the Beam OR the Cannons.
You cannot equip the Cannons AND the Beam.