List Page No Longer Works For Me

First, I am the student and you can be the teacher !!

I built a simple List Page, using ALL default options with 7 or 8 fields on a line. I added a Button to run some code which works fine and continues to work. This Last Page worked initially. I will say I did try changing settings, but I tried to be diligent to set things back when those changes did not accomplish what I was trying to do. However those issues are not the subject here.

Notice that the form believes there are 314 records (rows) which there are. Those items all get picked up by the processing behind the Labels Button. Why don't the data rows display like they did previously? What should I be checking to get the data items to display again? I understand I most likely broke it and yes I could rebuild the project in 15 minutes from scratch, but if I did this when the full project is built it would not be an option, so I need to understand how to debug a situation like this.

Thanx,
Keith