This is worth mentioning to everybody. My script only works for things that are written in text. If there are images or audio, it will skip that part.
@DW7 The issue should be fixed for you. Note that when you change a part of a word, it will only refresh the alternate answers that will exist for questions that ask for that part of the word. In your database you have two columns. One shows a picture of an animal, the other the name of the animal. When you took my advice, you changed the name of the animal. That would have changed the alternate answers for any questions that show a picture of an animal and you need to choose the name of the animal from a list. Not the other way around. If you are asked to choose from a list of pictures and some of the pictures are wrong (which is your problem), then you will need to change something in the pictures column of the word. I fixed your issue by deleting the images for the problematic animals and then re-uploading them. That caused Memrise to refresh the pictures that it uses in your sessions.