Visualassert can not select image

I have a macro on a web page that pops up a window. I need to select a button in the window to click on. I am using visualassert to do this however when I try to select the button I get no selection box. I cannot select anything in the popup window.

No sugestions? This make Kantu useless for my purposes. Is the answer to find another macro language ?

Please see the questions for you here: What is the point of visualAssert?

I will close this post as duplicate.