Additive animation adding to itself

Hi,
I have really weird problem with my animator.
I have additive layer for facial emotions in my animator and running emotion animations by trigger. Problem is, that when I press the trigger for animation, it gets added to itself so if I press the trigger several times it makes the emotion exagerrate.

I tried to disable "can transition to self" but seems like it doesnt help.
I also tried to disable loop pose on import, but doesnt help either.

Anyone expirienced this?

Thanks for any tips

 

I've never worked with additive animations, but I'm pretty sure you need something on your base layer to set the base value for the other layer to add onto.

So that might mean you have your base layer for other stuff, a Base Face layer with an animation that sets all facial expressions to 0, and an Additive Face layer where you can do your thing.