After 10 seconds have passed since the project started, all of the "bullet" assets are destroyed.

I have the bullet system set up in a way so that when you press space, the player asset shoots a fireball. But since I don't want to run the risk of either:

A. Creating lag

B. Completely destroying all bullet assets

I made it so that it creates a copy of itself, and that is what gets fired. But for some reason, whenever I run the project, and test how the firing mechanism works, after 10 seconds have passed, every bullet sprite but 1 is destroyed?

I've provided a video in case my description was foggy, which I know it was.

https://drive.google.com/file/d/1uIoef91CGm04wixvljg3g_tNpl1Z17s6/view?usp=sharing

Im not exactly sure whats going on, but attaching the capx would make it easier for someone to find out what is causing the issue in your project.

From what I can see from your video: It stops creating fireballs at 36

Try adding an event to destroy fireballs when they are no longer in play

Add Event: Fireball Is on-screen(Invert)

Add action: Fireball Destroy