I'd like to know if this is a bug - interactions do not work when running

Objective: I want to link the options of the dropdown list to the display below it. i.e. when I select game 1, the view of game 1 will appear below.

now I have the interactions defined on the dropdown list - set variable and change state, but none of them works when running. Before I added set variable interaction, the dropdown worked, it just didn’t change the view below.

if someone could point out what I’ve done wrong.
many thanks