I often have a problem with clickin particular UI elements. This one I have in mind right now is defined. In this particular scenario, I have a couple of panes within one window. It looks like that:

I need to click this:

Before, in the flow I have actions like:
open illustrator > ctrl + o > populate file text field > enter > wait 15 sec > and here click this UI. I get the info that the window/pane couldn't be fetched (sorry I have UI in Polish so this may not be exact translation, but it shows the idea).
I could click in the specific area of the window instead but I do want to use UI elemements and this bother me. What is funny, it worked previously

Should I add anything before?