Dynamic collection question

Hi,

I'm trying to target some specific computers. I want to find computers that are either within a particular IP segment or that the computer names start with a specific set of numbers AND that have and old version of Internet Explorer AND that have been active recently.

So you can see in my first image my dynamic collection settings. I'm using the "successful scan date" variable to see if the computers were online recently. But even though I asked for a specific date, in the results I can still see computers that don't fit the parameters. See second screenshot.

Any idea of what I did wrong?

Thanks.