[Mighty Script] If "Cumulative" is checked in "On Gold" trigger it will not start

I've created a trigger with "On Gold" in 2.0.7v and tried to make it work. It seems if "Cumulative" is checked (like in the picture below) the whole trigger won't start. Unchecking cumulative will make that trigger work, but it's effect is not what I wanted to achieve with that script of course. I set starting gold for 500.

Specs:

Win 10 Pro 64bit, Radeon 7800 HD, 8GB RAM, Intel Core 2 Quad Q9450, low graphic settings

WftO v.2.0.7, all DLCs