Sorry if this is a wrong place for this topic...

So i've been playing around in Creation Kit a while now, and yesterday i noticed that crReduceDamage05 & crReduceDamage075 perks are not doing what they are supposed to do: "reducing incoming attack damage by multiplying it by some factor smaller than one." Instead of reducing the incoming damage, they instead reduce the damage done by the owner of the perk.

MQ101ReduceDamage seems to work properly like it should. But these two perks are not. Was this intended or is this a bug? If it is a bug, i hope it gets fixed in the next patch if there is going to be one.

I dont have a clue about what perks you mean.

They are NPC only perks. I just took the description from UESP.

Not sure, but if you haven't heard of the Unofficial patches yet, you just did

Could be related to difficulty settings.

Novice and Apprentice reduce the Players incoming damage by 0.5 and 0.75. So it could be related to the Players incoming damage, but the perks are applied to the NPCs instead.

I've been using Unoffical patches since Morrowind. And no, they don't fix this.

I doubt that it is related to difficulty, since these are placed on some creatures (mainly dwemer animunculi).

They are working exactly as intended. Whoever wields those perks do less (melee)damage.