Well..not sure why the files you indicate are not showing in Explorer for you, since they seem to show for me. Since you can see them in your attachment, possibly I am misunderstanding your situation..where is it the files cannot be seen..?
I do not have a check box next to one as you show in your attachment. So, to make sure we are looking at the same thing, could you describe how you get the check boxes? Are you grouping or sorting in some way, or do you have some third party app involved?