Trouble with clicking through dynamic pages

[office79467]

I have a database of 16 film projects. They are displayed in a gallery. When clicking on a specific film, a dynamic page opens and shows more details on the choosen film (data pulled from database).

My problem:
I have 2 arrows to browse through the films (next, previous) but they just won’t work! I have linked the arrows to the database and tried “next/previous item” (nothing happens at all) and also “next/previous dynamic page” (an empty dynamic page gets loaded).
When trying this in preview mode, a floating navigation tool appears, as shown in the image below. Strangely enough, the arrows work fine there, so I guess my database is set up correctly.

Which command do I have to apply to my arrows to achieve the exact same function as the arrows in the floating preview menu? Thanks a lot for help, I’m quite desperate.

[office79467]

I found a workaround: the URLs of my dynamic pages were formed with the field “project name”. Since my homepage is in German, I suspect that special German characters in the project name caused the problem.

my workaround: I added a field called “number” and gave each film a number. Then I changed the URLs from “project name” to the “number” field.
You can do this here:

At this menu location shown in the image above, I first removed the field “project name” and added the “number field”. → save.

Concerning my 2 blue arrows in the image of my original post, the correct setting for the dynamic link is “next/previous dynamic page”.