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Fixed in 2019.4.X

Fixed in 2020.2.X



Found in




Issue ID




Editor crashes with various stacktraces when entering Play mode after duplicating GameObjects

Visual Effects


How to reproduce:
1. Open the user's attached "" project
2. Load the "Zlepenec_v05" scene
3. Select "Humming Bird" and "Bomber vindicator AI" in the Hierarchy window under "Enemy ships and turrets" > "Active AI" GameObjects
4. Duplicate GameObjects about 10-15 times
5. Enter Play mode
6. If the crash did not occur, exit Play mode, relaunch the Editor and repeat the steps
-- Observe the crash

Reproducible with: 2019.4.3f1, 2020.1.0f1, 2020.2.0a18
Could not test with 2018.4 due to multiple compilation errors

- the crash may also occur when exiting Play mode or even when the Editor is idling
- sometimes it crashes without duplicating GameObjects before entering Play mode

  1. Resolution Note (fix version 2019.4):

    Fixed in: 2021.1.0a7

  2. Resolution Note (fix version 2020.2):

    Fixed in: 2020.2.0b13

  3. Resolution Note (fix version 2019.4):

    Fixed in: 2019.4.16f1

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