Greater Power Attack
 

Is Greater Power attack from the Two Handed fighter Archetype working correctly? Or am I missing where to activate it.

16th level fighter, Power Attacks for -5/+10. Two-handed this is +50% for -5/+15.

Greater Power Attack makes this +100% so it should be -5/+20, but this isn't reflected when activating the ability on the In Play tab. though text is added to the Power Attack description in the pop up window.

I know where the Bug Report feature is, and will report it as such. Just wanted to find out if I was missing something first.

Seems bugged to me, report it please.