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Fixed in 2018.3

Fixed in 2019.1



Found in





Issue ID




[VR] Particle Systems cause "task.rasterData.indexBuffer == NULL" error and lead to graphical glitches



Steps to reproduce:
1. Create a new project
2. Enable VR
3. Create a particle system
4. Enter playmode and put it in your HMDs view
5. If error doesn't show, repeat Stop / Play of playmode again. (when doing this i can repro it with the MockHMD)

Result: "task.rasterData.indexBuffer == NULL" error in the console and potential graphical glitches

Reproduced on 2018.3.0b8, 2018.3.0b10, 2019.1.0a9
Not reproduced on 2018.2.16f1, 2018.3.0a1, 2018.3.0b7
Regression introduced in 2018.3.0b8

- Is known to also cause memory leaks

  1. Response avatar

    Resolution Note (fix version 2018.3):

    The fix has now landed in our various release versions. 2019.2.0a4, 2019.1.0b2 (available approx 1st February), 2018.3.5f1 (available approx 6th February). Thank you for your patience.

Comments (139)

  1. E567259fc57a48aaffae92dd2ae60eed?d=mm


    Jan 27, 2019 08:12

    Any update?!!

  2. E567259fc57a48aaffae92dd2ae60eed?d=mm


    Jan 27, 2019 08:11

    Hi Unity, when you could release a new version to kill this Bug?
    Even if let us first normal use let the game to the player experience, the game died, our team died, this must not be what you want to see!

  3. E567259fc57a48aaffae92dd2ae60eed?d=mm


    Jan 27, 2019 00:41

    Unity always crash,windows always crash,the build game always crash!!!!

  4. F7d97e9d519ed220fff5e1671a264a7c?d=mm


    Jan 26, 2019 14:39

    over 3 month since bug was reported and still not fixed in latest release... Did unity hired managers from bethesda? this is critical bug what the heck you guys were doing for 3 months?

  5. 05147b725ef2c442f9a00630036fddd2?d=mm


    Jan 26, 2019 13:54

    Thank you for the work.

    I decided to upgrade my unity version 2 weeks ago. I was using 2.17 and it was working well. This bug stopped my game cold. I was going nuts restoring old versions and piecing my game back together.

    Thanks again.

  6. 52d039d5d5d7f28dbed71c033e247774?d=mm


    Jan 26, 2019 13:36

    The fact that this is taking so long the Fix! is probably because it's a more fundamental bug then it sounds, this bug is a show stopper for developers, and quite frankly embarrassing to have in the first place. Is the fix you have working, please keep us updated. What do you mean by which version it will land in?? so you can't fix for all versions?

  7. 6238000e7287865590cd725aa1be71da?d=mm


    Jan 26, 2019 01:54

    Would be great to get an official confirmation that you guys saw the comments indicating this bug does not only affect VR projects.

    Would be a tragedy to fix it for VR and somehow not for the other cases =)

  8. 3747c31b3b679fbfaf1d157286bfa431?d=mm


    Jan 26, 2019 00:46

    Glad to hear theres a potential fix. Fingers crossed!

  9. B685d264641e7596f7192496e2cb38f7?d=mm


    Jan 25, 2019 18:19

    I am also looking very much forward to the patch! :D :D :D! I sure would like to have particles in my VR project :D :D :D!

  10. Ffa8f89534046843a34b50fead4aec99?d=mm


    Jan 25, 2019 13:11

    Many thanks for the update, Richard. We look forward to the patch!

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