Ribbon Module Loop And Weird Emitting Issue

[anonymous_user_2ba333dc1 (anonymous_user_2ba333dc)]

Hi,

I was trying to make an particle that similar to Ribbon example in “Content Example”, but slightly difference is I want source emitter burst say 20 projectiles at one time and loop it. I wanted the effect looks like a smoke bomb explodes and then leaves a smoke screen in the air.

I tried to

1. set loop in Ribbon module under spawn it somehow will break the trail.(trail stops render after a short distance)
   link to screen record
2. set loop in projectile(source emitter), no loop in Ribbon under spawn, I got weird trails after projectile dies.
   link to screen record

Is there a way to fix it?