Hi Pedro,
Thanks so much for your report.
The problem has already been reported, and I think I already replied to you by email this morning (a report in the forum or by email is actually sufficient 
):
Intermediate fix:
%root% input[type=search] {
width: 100%;
}
I’ll close this thread accordingly. We’ll update the original thread as soon as we’ve fixed the issue.
Best regards,
timmse