Hi, sorry if my english is bad.
I have a macbook pro retina early 2015 and i Was using OS X "El capitan" and when I upgraded to macOS sierra, the function "look up word" with the force touch, in the app "preview" are not working. I used a lot that function, for translate english words and is very important for me.
What can i do? I searched the problem in Google and in forums, but i don't find anything.
MacBook Pro with Retina display, macOS Sierra (10.12)