I have had the exact same issue with artifacts not working and i also think that it is because of the skulk claws because it only happens when I'm using those. the only fix I've found was unequipping and reequipping the artifacts.
Liam BAth
I have had the exact same issue with artifacts not working and i also think that it is because of the skulk claws because it only happens when I'm using those. the only fix I've found was unequipping and reequipping the artifacts.