Examples:
Wahai Poraga - At Blade's Reach: -100% Melee damage recieved after atacking for 0.0 sec on lauchning an attack
Saru-Sichr -Poison Dipped: 0 Corrode damage per 0 sec for 0 sec on Hit
I noticed similar Problems with other weapons, but those were the ones i had at hand right now.
Same Problem popping up for me from time to time. IME is german. Will try it with disabled Steam Overlay.
I would upload the output log, but the damn file has like 17MB which can't be good, so i'm just putting the last few errors here (they're all pretty similar):
Update: Disabled Overlay, and it seems to be fixed.