Similar to the problem mentioned here, that was fixed in build 2113, the same problem with the wrong word being highlighted/(looked-up in osx dictionary) when hovering the cursor over the word and pressing cmd+ctrl+D appears when in distraction free mode.
A second issue is that the highlighting of the word doesn't respect the font style/size of the underlying text. This is particularly problematic when the font size is relatively large (but is annoying even at size 12).
How this looks in textedit:
I'm testing out ST2 for writing my LaTex documents and use this feature more than usual so apologies if this seems relatively pedantic.
Customer support service by UserEcho