I've been doing a few blocks of UWorld and I have noticed that the sequential questions are not always linked. Meaning, the answer to question 1 is given in question 2 and I can go back and change my first answer.

Has anyone else experienced this?

Is this a glitch?

Is this what Step 3 is like? I know the first 2 Step exams you could not go back so I'm a little confused about this.