How to spawn actor from another spawned actor?

Sorry for replying so late!
Thank you so much! This really helped with the problem I was having!
However there is still a small error if you wouldn’t mind helping out just a little bit more.
When detonating the c4, the explosion only effects the last placed object, meaning any c4 placed before it does not explode.
Is there any way I could make all the c4 explode at once?
Thanks and here is my current blueprint: