Help with Asana x Google calendar integration

Hi Everyone. I just have a short ask, maybe I’m missing something.

I’ve created a rule where everytime I change a due date / start date, it creates a GCal event. The problem is, the calendar I’ve setup specifically for Asana tasks to go to, creates 2 events. One that I have to confirm that I’m going, and the 2nd one is how I’d like to be with it being able to change the color code and move around.

Did I set this up incorrectly?

Many thanks