Unity Editor 2019.2.10f1 is crashing by making changes in particle system

Unity Engine
1

Unity Editor 2019.2.10f1 is crashing on my machine due to changes in “duration” parameter for particle system.
Wrote up the bug report here :
http://fogbugz.unity3d.com/default.asp?1194840_8ua5kqmoabpvvdr3

Steps to repro :

  1. Create a particle system.
  2. Create a child of particle system which is also a particle system.
  3. Play the particle system
  4. Change the default duration parameter of particle system from 5 to 1.
  5. Observe the crash.
2

Hi
i had this error too , you must change these things before changing duration

  1. Max Particles < 50
  2. Simulation Speed < 1