Further to reviewing the latest updates (Jan 2018) I did a duplicate comparison in each of the tables and have found a number of entries (45) with the same description, in some case within the same table or in other tables which may cause some confusion when selecting the right code. This was highlighted previously in a twitter discussion with Rob Jackson of Bond Bryan last year.
So when selecting a code just keep this in mind to ensure you are selecting the right one if a duplicate exists.
I should point out that these 45 duplicates are out of 13026 uniclass 2015 codes so a very very small %.
Hope this is of use and look forward to your feedback.