Quiz branching in Storyline 360 does not work properly

Hi Leslie. Thank you for your response. I am happy to share my story publicly. In the file ending with Introduction 2 I have 2 questions which are supposed to be randomly drawn from a bank of 12 questions. The slides 2.2 and 2.4 are empty and are used only for decision making. Based on the status of the variable 'TryAgain', it will go to either previous slide or next slide. In the version with filename ending with Introduction, instead of going to a previous slide, it goes to a question of the same type. The slides 2.2, 2.4, 3.2 and 3.4 are only for decision making, but in 2.2 and 2.4 I have put a textbox showing the status of 'TrayAgain' variable and slide number of troubleshooting.

My problem is that every time that the flow goes to question slides, it does not draw a new question, but repeats the same question drawn before. In the properties of question bank, the default for 'When revisiting' for each question was 'Automatically decide'. I changed it to 'Reset to initial state', but nothing changed.

I would appreciate your help.