Crash Report - Combining Particle Systems

If you are in the Component Editor, and you drag one particle system on top of another particle system, it asks “drop here if you want to attach” (or something like that). If you say yes, you get the following crash to desktop:


I’m also guessing we don’t have access to change the particle system on certain weapons, like a torch? I see the inherited particle systems in the Components, and I can duplicate and modify them, but I can’t see any way to substitute my updated particle systems for the inherited ones?