Shock DR reduction stopped working

[nstgc]

Using the Stormcaller bow. Mobs have the DR reduction debuff, but its showing in neither the stat window, nor when I mouse over damage dealt in the combat log. Worse, the mob in question, Adragan has reduced piercing DR so I'm losing about 5 damage per hit.

 

edit: I went on the next level of the Endless path. Same thing, different mob. First hit showed a DR of 8 vs shocking (the skeleton's piercing DR was higher than it's normal DR) and that the debuff was applied. The second hit also show that the shock DR was 8.

 

I'm not using any mods, and I validated the game files with Steam.

Edited August 23, 2017 by nstgc