Hey there!
I have a small issue with mutliple Particle Systems (One Prefab).
The Particle System are creating Lights as the Particles emit.
The problem is, that only one System does that.
See the GIF to get what i mean. I hope its visible.
I tried to set the Light Source from a other GameObject in the Particle Systems parent and from an other Prefab.
As you can see in the second Image there are 10 Particles generated per System.
The light limit is at 50 so there should be at least 40 light sources.
This is how i configured the Particle System (Prefab)