Change Collision after hit

Hello,
I am new to unreal engine 4 and I am working on a new project. In my game you need to jump on specific platforms and if you fall and hit the floor you will die. I have a problem, when i hit the floor it plays a death animation and after that my character falls trough the floor. I am using overlap all collision, and in the graph of the floor i have this:

My character has block all dynamic collision. My current only way to fix this is adding a wall beneath the death floor, so my character can collide with him. Is there any way to change the collision after the death animation is played so my character wouldn’t fall trough?