Can’t open the loops

I downloaded the latest version of Psychopa from the site, but when I click on the loops, they do not open and it is not possible to modify any action on the loops.
I would be grateful if anyone could help.

Do you get any error messages in the Runner when you try to open a loop?

No, I did not receive any error messages.

I really do not know what to do

What version of PsychoPy are you using, and on what operating system?

Windows 10