One after Another feat not working?

Ever since I hit level 30 on my veteran, for some reason after I kill elites this feat won’t activate anymore. It doesn’t seem like the final feats are interfering with it because when I turn them off in the psycanium it still won’t activate. Not too sure what’s going on. Earlier in the day it was working however. Not sure what changed other than me hitting level 30. It’s not just that the visual tooltip isn’t showing up anymore, even though it isn’t, because my reloads are the same after I kill an elite.