Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding Troubleshooting .gameScript does not execute

I created a simple .gameScript that fires on the event "OnTriggerEnter" and displays some text above the character that entered the trigger.
I assigned the script under "Project Settings" and "Game Scripts".
Nothing happens when a character enters the EventTrigger.

When I copy the same code to any .itemScript it works fine though.
So, how do I enable .gameScripts properly? What am I doing wrong?