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Fixed in 2020.2.X



Found in




Issue ID




Non-child Sub Emitter particles move / shift / teleport when modifying transform and 'Play On Awake' is off

Visual Effects - Legacy


How to reproduce:
1. Open attached project "" and scene "SampleScene"
2. In Hierarchy, select "Particle System D - Sub Emitter [BUG]"
3. Enter Play mode
4. In Scene View, wait for green particles and either move, rotate or scale the object (either from Scene view or Inspector)
5. Observe the green particles

Expected result: particles do not jump/teleport/shift unexpectedly
Actual result: particles do jump/teleport/shift unexpectedly

Reproducible with: 2017.4.40f1, 2018.4.22f1, 2019.3.12f1, 2020.1.0b8, 2020.2.0a9

  1. Resolution Note (fix version 2020.2):

    Using sub-emitters outside the hierarchy of the owning system is not supported. This gives errors if set up via the UI, but maybe the user set it up a different way eg via scripting.

    Verified in:
    Version: 2020.2.0a20

    I've added a better error message to explain this situation.

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