Thanks for your help. I tried your answer, using the Ability Variable and try to get the variable value in the formula.
According to this tutorial: http://orkframework.com/tutorial/howto/selected-data/
It says: Battle events and formulas used b…
I think i found the problem. For both the Dialog Gui box and the menu screen Gui Box, I checked the Own Skins and used the same prefab(MainMenuContainer) in Content Box Prefab. This caused the problem.
After changing the prefab of dialog's Cont…