That's what I was missing! There's not much to make that tree look different than the others. Maybe if the event activated as soon as the player bumped into instead of requiring an "enter"?
Thank you :)
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 :)