Most of spells and perks do .00x damage that sometimes can make mobs invulnerable. Mobs health stuck at ~1% and never drops below. Physical damage from weapons is good btw, but still can't kill mobs with broken HP from spells.

latest.log

What spells do 0 dmg

I mean spells can do x.00x damage, for example 43.009

After that, mobs become invulnerable, because mod can't properly work with these numbers

This should be fixed in latest library of exile