Cant set cookie on click

Hi
I am following this tutorial to add a cookie alert (https://docs.wappler.io/t/creating-a-cookie-consent-alert/18543). I have followed it to the letter, but, when I get to the step:

Then select the notification cookie, which we created and set its value to 1:

I get an empty list, I have saved, refreshed, closed wappler, no matter what I do I only get an empty list, I tried doing the steps before again (define cookie etc) and gave it a different name, but nothing, always just an empty list

Is this a bug?

Thanks