Hi Joel,
Thank you for your help. I don’t think it’s a problem of renumbering. I found on page 3 of this forum people with the same problem (october 27, 2015). This Mario Molina gave also a hint that says:
The next button on the chapter skips the link to the ultimate vocab three. Try clicking on the last page from the hub directly.
But I don’t understand what he means (my English is probably not that good). Anyway I followed your answer and downloaded the ultimate verb list. I think that no 3 had verbs, maybe not so many, in it and they are so important!
Elsiabeth