dirty trick feat tree missing?
 

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cannot find this under feats ("apg new combat maneuvers" and "everything" turned on).

Just to cover the basics... the feat chain starts with "IMPROVED Dirty Trick".. you're not looking for a Feat named "Dirty Trick" are you?

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i am looking for "improved dirty trick" -- as a matter of fact, searching for "dirty trick" (which would include "improved dirty trick") pulls up any feat (allowed or not) with the words "dirty trick" except "dirty trick master".

Dirty Trick Master isn't in the same book as improved dirty trick - dirty trick master is from Bastards of Golarion, improved dirty trick is in the APG's new maneuvers section.

I do see both of them when I filter the feat list for "dirty trick" on my own copy.

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outside of what i have activated, what am i missing that is not showing me the feat?

There shouldn't be anything else required other than "Advanced Player's Guide New Combat Maneuvers", so I don't know why you're not seeing it. Nothing you've mentioned should keep you from seeing it.