Finally I ended using (it's also working for different languages of Recaptcha challenges) if someone searches for the same:
">CSS>iframe[src^=' https://www.google.com/recaptcha/api2/bframe ']>FRAME> >CSS>#recaptcha-verify-button"
@m4zuper Please understand the problem.
Slow proxy can also be with a slow internet.
And I don't understand why this affects.
I'm sure it never happened in version 23.2.2, even though I haven't used it in a long time.