Copying Checkbox FIelds In Form

[Jenn MC2]

I have a fillable form in which I need to provide 574 unique checkboxes.

That is a lot to manually enter on by one, so I created one column of 41 checkboxes, and then copied those 41 checkboxes as a group to the remaining 13 columns.

But what I'm finding now though, is that when I check a check box, all the boxes populate. 
I didn't realize that copying a series of checkboxes would result in this behaviour. Is this not possible? Or is there just a parameter I missed? They were all uniquely named with the same textual prefix I created for the first box, and then each has a sequentially assigned number., 

Or do I need to do all 574 boxes individually?

[Bernd Alheit]

Use unique names for the checkboxes. 

[Nesa Nurani]

Select prepare form tool and right click on checkbox and select 'Create multiple copies', this will create checkboxes with unique names.