I don't know if it was mentioned earlier, but using Weather Pain on a target locked enemy doesn't work, because "Use gadget" and "Unlock target" are using the same button.
Maybe the whole mechanism should be work like a toggle (press L3 to activate it and press L3 again to deactivate it).
- Target Lock an enemy (L3)
- Equip weather pain
- "Use gadget" (Circle)
- Enemy unlocks and weather pain doesn't activate