Well, apparently this is a bad idea because every time I tried to load that enemy the game would crash. After trying a few things I decided to redo its spawning events from scratch, and suddenly it works.
This has happened before in the past. Even if the (copy/pasted/edited) event is perfect, it won't work or will crash the game. Re-writing it from scratch in the exact same way fixes it.
Any chance this can be looked into or is it another thing we'll have to live with? :<