So I did the whole TR thing making a character a pure rogue. Went in to follow primarily the assassin line and took the enhancements up to the top tier and took all of them. Then filled in the last points with racial tree and some from acrobat tree (oh how I wish I had the right character set up to mix rogue and monk to start swinging the big f'ing stick).
I accepted the distribution of points and closed down the enhancement screen. (sidebar: is there an "x" to close button on that screen? I didn't see one and had to select it from the main menu again to close it.) Went to my character sheet to distribute my clickable skills on my hotbars and Assassinate wasn't there. Went back into enhancements, and here dear readers is where it went askew, and the enhancements had redistributed the points for me. Including removing all the top tier enhancements and putting them elsewhere.
Please advise, dear readers, as I spent several thousand plat to re-set and had it happen all over again.