I attacked Concaveator in Gold Event Challenge with Pounce attack using Utahrapor, it countered with Armour pierce and then Armour Pierce.
Damage was not reduced by 50 percent but around 25 percent. It had attack of around 952 and damage received was 752 twice, not 476 as expected. Seen this happen before with Armour piercing attack, were Pounce attack does not reduce damage by 50 percent. Lost the challenge due to this bug.