Phantom extra line on SSRS Report

I was working on the SalesInvoice report the other day.  I added a line to the SalesLine section that would display 'Notes' that have been attached to the Sales Line.  All the sales lines would print their note just fine except for the last one and I couldn't figure out why that would be.

Instead of wasting as lot of time and potentially not figuring out the 'why', I decided to simply set the Row Visibility property on the tablix row.

Simply right-click the row and select Row Visibilty.

The next screen is where you will set your expression!

Just make sure that the expression you use is a boolean expression and you are good to go!