We ran into a problem with NOP 3.7 creating duplicate content. We have two languages English and Danish. So we should only have http://domain.com/en/pagename and http://domain.com/da/pagename but when we crawl the site we are getting */au/pagename, */st/pagename, */wp/pagename, */bh/pagename which don't make any sense at all. BAD SEO!!
Now some of the pages is indexes at Google and we are forced to do 301 on this strange slugs.
We would like put a stop to them instead of 301 but where are they coming from and how do we get rid of the them??