Duduring the "Cornered" Part of Living Story Aerin activates a shield and we're suposed to use a sun crystal hability to break that shield. For me what happened was that no matter how many times i use the crystal hability Aerin shield never broke.
Luckily i was on my thief and shortbow 4 skill is unblockable. Took some time but i was able to kill him.
So we have 2 problems.
1st - something prevented me to use the sun crystal to correctly interrupt Aerin shield.
2nd - I was able to exploit thief's shortbow 4 skill to workarround that, which isn't intended imo.