re-initialize projectile counter

Hello,

I’ve tried to modify the unreal paper2D content example and crossed over some problems.
I wanted to set a counter to shoot a defined amount of projectiles (i.e 10) as soon the playercharacter walks over a coin but this works only once. If there are 2 placed blueprint coins in this map my blueprint won’t trigger this behaviour a second time.
Do I have to create a custom event or something else?

thanks in advance!