If you compare that screenshot with the previous one, you will see that in the area below the textbox where it has the words "Container Path" in orange lettering, Jackett has /downloads, for example, but similar places on your other screenshot there is nothing next to "Container Path" for many of those. For example, for the host path /mnt/user/Storage/movies, there is nothing next to "Container Path".
If you really want to learn, please do as I said and look at that link to the Docker FAQ I already gave. Then you will know what we want you to give us whenever you have any docker problem (at the first link in the FAQ), and you will be able to ask better questions if you at least try to understand the "Getting Started" stuff. The questions you are asking now are really just kind of random.