Game Mechanics: Siren Grotto Run Pathing

[Rufio]

Last night it was noted that in SG once a mob went low hp and began to walk away it would warp in that direction. Aka a mob was in front of you and then warped 5ft oor in the opposite direction. Not sure if it was particular to patch or zone.
As mentioned in other post, no AEs, once a mob was reset it wouldn't cast DDs. Summons didn't seem to take place either. Archery is rendered useless once an arrow is shot and can only be reset by logging out.