Why repeating group shows one less row in Preview?

Thanks for the reminder Mike !

Yes, two Repeating Groups. (I tried to use 1 repeating group to make things easier, but it didn’t work. I asked the question in another post
Option Set within a Repeating Group)

Here’s a screenshot of the editor for the Repeating Group B.

What I’ve been struggling to achieve is to create a new data which should includes all 4 reviews on 4 main course by clicking on “Submit” button only once.

I’m just trying to work my way around it. But Workflow don’t give me the option of creating the new field values. I can’t find “= current users’ option” .

W-O