I’d the game bugged again or am I misunderstanding the node

Trying to do the mutant part of the can monthly quest . In the Seeing Red description it says that activating a special attacks removes bleeds and gives me a fury but when I activate a special attack half of the time it doesn’t work . No fury and sometimes even the bleed doesn’t get removed . So is I a bug or did I misunderstand something
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Which ones are defective?