Trollhunters: Rise of the Titans

I think Trollhunters is the best series there is. I've been a fan for years, and I don't like the ending of the movie because it ruins the whole story. The movie itself was quite decent, except that Trollhunter Jim's amulet didn't work from the beginning, which was a bit silly. But there are so many logic gaps. For example, why was Toby suddenly not wearing his armor when he was riding in the taco...