Nevermind. Turned out I needed to use ActivateSystem(true) to make it work, where the default value when calling ActivateSystem() is false.
Edit: I ran into some issues with activate/deactivate methods when I would call activate() when the system was already active. Doing so would deactivate the system. I’ve since starting using the public variable “bSupressSpawning” and it’s been working much better.