Last year after they changed twisting path from proccing I went and tested alot of stuff about it. My results were that every DOT could proc Scathing Mage on its first tick. That included all DOTs, ground aoe aswell as skills that had a direct dmg tick aswell as a dot after it (like Cripple and Clench of Destruction, they had a double chance to proc scathing)
So on PTS they changed Acuity, and I tried to test it, aswell as Scathing and Nerieneth.
I tried like 45min now several tactics where i spammed the skills on a group of target dummies or changed between 2 seperate where i changed direction of the skill every time, so the skills hit the targets after another.
My results were strange and i cant rly explain them.
Scathing:
Unlike last year after Morrowind i couldnt proc scathing mage from twisting path first ticks (i could after Morrowind). but i could proc it from wall of element first ticks and from endless hail first ticks and some other dots first ticks aswell. I scanned my combat reports to make sure that it didnt proc of burning or enchant, so im sure that it was proced by Wall of elements
Acuity/Nerieneth: I couldnt proc Acuity with Wall of elements at all. Pretty strange, cos wall of element procs scathing. I tried several other dots aswell none could proc Acuity, with one exception that proced Acuity ONCE. Twisting path proced Acuity one time in 45min testing.

As you can see the only damage i did was from literally spamming twisting path on multiple dummies. It never proced before on ticks and never after.
my first thought was that apperently some dots crits count as direct dmg cos they proced scathing and noncrits doesnt count as direct dmg, but then those ticks should have also proced acuity. If the scathing is 20% from crit hits and acuity 15% from all hits, acuity should have proced way more often cos my crit% was around 30% only.
And even that wouldnt explain why i got one single Acuity proc from twisting during my whole testing session.
@ZOS_GinaBruno
I dont know what devs area this is, so pls redirect the thread to them

Something rly strange is going on