Actually the leader of the Guavian Death Gang told the First Order BB-8 was on the Millennium Falcon and in the hands of Han Solo.
I was thinking of doing a quick edit next week when the blu ray gets here and the first thing I’d cut would be the rathtars scene, which messes up the rhythm of the movie.
But if the Scottish guy telling the First Order about BB-8 on the Falcon is the only continuity issue then I don’t see the problem. It seems likely that Snoke has access to the Force, so why can’t it be assumed that he’s used the Force to get the information?