Glad it works in the downloaded version.
No, you don't miss anything, but try to click on the trees at the left side :)
This is absolutely working as intended. After all, it's an rpg, and in most rpgs, you need to look for yourself. Since you do not have much possibilities (you can't go back), the path forward is not too hard to find, I think. And there will be harder puzzles to solve than that :)
Have fun playing :)