Not really, although I lost one mark on a couple extended response questions. Usually the questions starting with "contrast, compare, etc". I'm not sure what I should actually start off with in these questions which result in to me wasting a lot of the lines provided for my answer.
Basically:
Compare - Bring together points of similarities
Contrast - Differentiate between the two but also explain
how they are different.
Basically in these questions you should be starting off with definitions for each, that is an unwritten rule for extended response questions. But after that's where your application comes in. If your including characteristics/advantages/disadvantages in your notes then you should be doing well, and if you aren't, it should only be a matter of time before you excel at these types of questions.
Basically this goes back to practice and focus.
But this isn't something you should stress about at all if you are. You'll definitely become better as time goes and you put more practice in.
I hope I've helped in some way or another