Whats Happening with my particles 
Looks like a visual bug. Try restarting / reinstalling studio if you havent already.
Scratch that looks to be an engine bug as there are lots of posts about this.
Interestingly enough, I’ve been having my own problems with particles with them just straight up not appearing at all. Doesn’t matter what place it’s in, all I know is that the particles just refuse to become visible.