XClick doesn't work (Windows)

Hi, I’m an absolutely newbie to ui.vison. I managed to do some scripts in browser automation mode within the browser. Now I wanted to click on an addon button within my browser (Chrome) and found out that I have to use desktop mode and the xclick command. But I can’t get it to work. If I set the search confidence from 0.4 to 1.0 I get the message “Image not found”, if I set it to 0.3 a wrong element is chosen. The same for the demoxclick script.
Please any ideas?

Can you add a screencast? Maybe I can see then what is going on.

Hi, thx for your answer. I attached a screencast. First one try with search confidence 0.8, no image was found. Then with 0.3 and the wrong icon was clicked (The icon of gmail on the right side instead of the marked).

https://screencast-o-matic.com/watch/cYhlIigKtW