Looks like a dynamic element that gets spawned in but no check to have it stop spawning and no check to unload it either. Either would solve the issue. Because you might want something to constantly get spawned in, like say rain drops during a rain storm. But then you unload the rain drop once it hits the ground. But if its not unloaded, you'll have a memory leak in no time. So it might not be a bug that something is generated constantly, but it is a bug that its not getting unloaded once its done.