we attempted Cutlers Cry 4 times last night, there are 3 tiers of mobs to clear for each group. i noticed on the third one the portal spawns in front of one of the webs rather in the middle, and that takes you to the long corridor room ( right before the Ant boss ) where a chest spawns but not AF chest we got dark matter from it.

Im thinking maybe its random upon Entry if the AF chest spawns Before or After the Ant. If not then maybe it is Kill order ><