Preview is blank

Hi!

Here’s how my file looks:
http://uploadpie.com/C2Aty

Preview was working fine when I opened it last, but am not sure why the it stopped showing-up all of a sudden. Not sure if I’m missing something here.

Oh… figured it out. It doesn’t work with ‘show black fill’.

Do you have the latest version of the ‘show black fill’ plugin?