Confirmed, after removing the Google Search widget (in my case), I waited aroudn 5 minutes and the normal permalink is restablished. Now here go the questions, in case someone knows the answer: What does this #gsc.tab=0 affect negatively? SEO? Ranking? Or would this change go neutral for most of us? I would like to hear some opinions,in case it could be a positive change.. Regards from Costa Rica colleagues!