Firing collision event on dynamically added sprites?

Hey, I am learning and trying to make vertical bars that once somebody jumps on top - will either collapse or not (random)

It looks like this:

And it gets dynamically added, this is the blueprint for it:

It seems if I go to event graph - none of the events get triggered when player touches bars, I assume because sprites are dynamically added?

If so - how do I attach collision event to each bar that gets dynamically added?