I also have a Copy and Paste problem after upgrading to 10.2. Very inconvenient since I have stacks of exegesis homework lined up.
What happens for me with the NA27 as well as GNT is that when I copy (whether just Cmd + C or Ctrl-Cmd + C) text with an circumflex, the accent gets pasted as a square root sign, no matter how I fiddle with fonts.
With the BHS/HMT, my anything with a Qamets gets pasted as the letter plus a schwa.
I can type out the words, but it defeats the purpose of Copy and Paste in the first place. Plus, somehow I can never get the same font as the rest of the text in Word. But that's probably a Word issue.