I will send you the map as is, so you can test it where it exactly does that.
And if you perhaps would be able to find a way to enable/play particle systems in a map, that would be even more amazing(i'm literally burning my last 3 neurons trying to figure this shit out but, even after getting a fully working trigger ingame, i dont seem to succeed at making the particle show, other than on osd.java's disabled footer voices)
Added 48 seconds later:
ps: may not be able to upload it before tomorrow though
Harrison15 about PXRZ: he turns everything into a pretzel in his head