Particle System logs error and lags

Hello, community!

Having a bit of a trouble figuring out what should I do. I've creatted a particle system with sub-emitters, and it works fine, except it logs an error: "Sub-emitters must be children of the system that spawns them" even though all my sub-emitter are children to emitter objects: http://take.ms/snUHA

And logging this error causes GC to make a lag spike when particles are playing: http://take.ms/cgaYX

Aaand I have no idea what should I do - how to eliminate that log? Does anybody have any advice?
I'm using Unity 2017.2.1f

 

It seems to be a known issue, which was introduced in 2017.2.0b1 and no fix has been made available according to the public issue tracker:
https://issuetracker.unity3d.com/is...en-though-sub-emitters-are-correctly-parented

 

I see! Thanks.

 

Do you have sub emitters listed more than once? I'm seeing this problem and we point to one emitter for both Collision and Death. wondering if that's what you saw.