In my case it only worked fine when doing a clean installation with the ISO, if it is updated from a previous build does not work.
I really ask myself what compells people to try to predict upcoming buildnr's, some had even 2 (or more) accounts to post them
The ONLY time that matters is Redmond time. There is no other time. It has always been this way. The same with the date. It is always year/month/day.