[Question] How to increase wood via triggers?

I’m currently working on a scenario (Return of Rome), in which I want trees to offer 160 instead of 80 wood. Via the “Modify attribute” trigger it’s no problem to increase the value to 160 wood, but after testing the scenario, the trees still offer only 80 wood. Their ressource bar is at 50%, so the game changes the maximum wood limit of a tree to 160, but without “filling” the gap from 80 to 160.

Is there a way to solve this problem? (“Replace object” trigger doesn’t work)