blend animation issues

Hello people,

I am making a animation blend for a throwing animation, but it isn’t working properly. I have two animations, one to hold an object and other one to throw it, and what I would like to do is each time the player press and keep left mouse button, he can call hold animation and keep it in the last frame until he decide to release left mouse button. When the player release left mouse button, then the other animation is play it (throwing animation).

I have tried to make a montage animation to manage both animations (hold and throw), however it doesn’t work for some reasons. I can’t see both animation at all. Also, I was wondering if someone knows how to keep last hold animation frame until the player
release the left mouse button.

I have done inputs and a cast between Character Blueprint and character Animation BP, so no idea what happen here.

I really appreciate any help someone can give me.