Guild Wars 2

So I bought the sactified finisher, but every time I select it, when I go to use my finisher, it still displays my rank flag, rather than my actual finisher. Any way I can fix it?

I’m experiencing a similar bug and so are the people in this thread.

My finisher does not remain selected and when I finish someone, it always reverts back to the standard finisher.
It worked fine before one of the recent patches.