Working through the core curriculum and wondering if the problem sets use questions past PT 35. For some reason, the newer listed PT's in the 'practice' tab show me that I've already used up a few questions from each, even though I haven't done any prep tests yet. Could this be because of the problem sets or drills?

I want to keep the prep tests after 35 fresh and was wondering if there's a way to make sure I don't use questions from the newer test while doing problem sets/drills. Thanks