Weird problem with particle instancing

Hi!
I’m very very new to TD, but searched for answers everywhere and tried everything and I still can’t solve this weird little problem.
I followed this tutorial and created an audio reactive particle system.
Thing is, I made an lfo CHOP > math CHOP > noise CHOP to rotate the particles back and forth, which is working as expected, but this revealed a problem:
for some reason the particles are being instanced twice - once along a circle CHOP’s points, and again around itself for some reason.

- as you can see in the bottom left corner there’s this chunk of particles…

I dowloaded the original file from the tutorial and tried remaking it there but that same problem is still present.
Any ideas what might be causing this or how to fix this?

Many many thanks in advance!