What's wrong with this for loop

I have been working on this for loop and for some reason it keeps on spawning sprites. The trigger once will true doesn't stop it as well.

mammoth

it will run every tick. if you only want it to run once, put it under an "On start of layout" event,

or put it in a function and call the function when you need it, like "On start of layout", just remember that if you call the function every tick, it will still spawn continuously...