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Fixed in 5.3.2



Found in


Issue ID




Particle system plays only once



To reproduce:
1. Open attached project
2. Open "_Test" scene
3. Play the scene
4. Click "Restart" button
5. Observe appeared particles
6. Click "Restart" button after particles become invisible (2 seconds)

Expected behavior: particle system should play once more (see gif, older versions behavior is shown)
Actual behavior: particle system is not playing again (see gif)

Regression introduced from 5.3.0f4 to 5.3.0p1

Comments (37)

  1. Zardify

    Mar 01, 2016 17:28

    Particle System still won't play if you:
    - Set "Looping" to false.
    - Set "Simulation Space" to Local.
    - Set "Play on Awake" to false.

    in 5.3.2f1

    Would you please fix this issue already?

  2. nickostan

    Feb 21, 2016 18:28

    I'm also experiencing this issue still.

    I have zombies that are supposed to play a blood splat particle effect upon being hit.

    If bullets hit the zombies repeatedly with a time between shots being about 0.25 seconds, after not having been shot, the particles play repeatedly, as they should. As soon as I stop shooting them however, wait a second, then shoot again, the particles will not play.

    I've been messing around with combinations of
    zombieBlood.Simulate(0.0f, true, true);
    and can't get anything to work reliably.

  3. RakshithAnand

    Feb 21, 2016 11:45

    Im still experiencing this bug with the latest 5.3.2 p4.
    As someone has mentioned, the parent system does not play after once. But the children behave properly.

    A particle system with only parent and no children just plays once.

    Again as someone has mentioned if we set ps.startLifeTime = ps.startLifeTime. It plays but some its not the workaround.. This needs to be resolved!!

  4. jefequeso

    Feb 17, 2016 20:24

    I'm having this issue after upgrading to 5.3.2f1 from 5.0.2. Seems that adding this nonsensical piece of code after my Play() and/or Emit() calls fixes the problem:

    ParticleSystem sys;
    sys.startLifetime = sys.startLifetime;

    Credit to mgsteinkamp for discovering this solution.

  5. blind11

    Feb 15, 2016 21:23

    Im Using Unity 5,3,2f1 and the ParticleSystem still only plays once

  6. TimmermanV

    Feb 13, 2016 13:24

    I just tried 5.3.2p3 from and the problem is fixed for me. Calling Play() multiple times works, even for local space particle systems.

  7. zorusantos

    Feb 12, 2016 19:44

    Still exists in 5.3.2f1

  8. chuka87

    Feb 12, 2016 15:42

    NOT FIXED in 5.3.2f2!!! Please, fix it. It very big problem.

  9. workcel

    Feb 07, 2016 14:31

    In my project (based on Unity 5.3.2.f1) this issue still exist... =(

  10. Link0n3

    Feb 07, 2016 14:21

    I am using 5.3.2f1 and the problem still exists on my side. Using particle system in local space.

    Also I had to set a burst (1) to all the particle systems that I had because when calling Play they were not coming out.

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