When I connect delay node to "Spawn actor from class" its crashing....i don't know why??

When I connect “Spawn actor from class” node to delay node it’s crashing…i don’t know why??

Post an image of the nodes as they are. Too difficult to debug the problem otherwise.

Also a crash log is always helpful. Use the new [spoiler] tag when posting it, so it doesn’t blow up the post x)