[Other] No longer receive Shadow XP on daily missions or in Inferno

I no longer receive Shadow XP when doing Daily missions or when I am in Inferno. I have maxed out my faction and have never had this problem before. When doing dailies, I get the tokens but no Shadow XP. This is only on my toon, Luciasus, in RK5. All other toons receive XP as they should.

I don’t know how to reproduce this problem since it started yesterday.