Why can't I run a Question Analysis Report for a digital SAT?

The current Question Analysis Report for the paper and pencil SAT provides question item performance for groups of students whose test form included the same set of questions. With every student seeing a highly comparable but unique test form for the digital SAT, we’re unable to provide test questions for every form. The difficulty level and other qualities of each question—as well as whether the student got the question right or wrong—are taken into account when calculating a student's score. Student score reports will provide insight into their knowledge and skills in four reading and writing and four math content domains.