As SP6 refers to an official course by the Memrise team, please find the related “Spanish1-7 by Memrise” thread in the course sub forum.
You need to distingish between Spanish-Spain and Spanish-Mexico (two different forums, two different courses).
Also make sure to tell which one (English UK vs US) you take with the separated courses and what level the words can be found.
If you use the www.memrise.com web portal, the best is to directly link the related course and level in the offical Memrise Spanish thread.
This is not a bug and this misplaced thread in “web bugs” needs to be closed by a moderator.
Please repost with all required informations in the related language forum course thread.