koobas.hobune.stream
Particle System Simulate in editor work wrong with start delay property none zero
I want to build a editor tool to let game designer to see effect play status forward or back frame by frame。So I need to play particle effect with specify passedTime.I find the API ParticleSystem.Simulate(),then i use it. And i find it doesn't work correctly when my particle system has a start delay time .(it work correctly in play mode) I create a particle in scene.the parameter is set like picture 1. 
Then,I click the particle in hierachy, there will be a particleEffect simulate panel in the scene view right-bottom cornor.I drag the playbackTime to let the number greater than the startDelay which I set 0.08.But as you can see there are no particle emitted. 
only when i drag the number over 0.18,particles is emitted.
My unity version is Unity5.4.0,I try it in 5.6.2 version is not correct too,But it work right in version 4.6.3,the particle emitted when the playback time is 0.10.
So anyone can tell me why? Hope your reply.
