Unity Issue Tracker - 'task.rasterData.vertexBuffer == NULL' errors when using a Particle System

Fixed in 2020.2.X

Fixed in 2018.4.X, 2019.3.X, 2020.1.X

Votes

112

Found in

2018.4.18f1

2019.3.0b12

2019.3.0f6

2020.1

2020.2

Issue ID

1226357

Regression

Yes

'task.rasterData.vertexBuffer == NULL' errors when using a Particle System

Graphics - General

Mar 09, 2020

Steps to reproduce:
1. Open User-attached project
2. Run the Sample scene
3. Tab out and wait for at least 3 minutes

Expected: nothing appears in the console
Actual: errors appear in the console

Reproduced in: 2018.4.18f1, 2019.3.0b12, 2019.3.6f1, 2020.1.0b2, 2020.2.0a3
Not reproduced in: 2019.2.21f1, 2019.3.0b11

Notes: Inconsistent reproduction, versions may not be entirely accurate, the bug may appear sooner than 2019.3.0f5, but I have not been able to reproduce it there
RichardK updated notes: Improved first affected versions based on additional information from QA/community

richardkettlewell

May 07, 2020

Fixed versions:
2020.2.0a8
2020.1.0b8
2019.3.14f1
2018.4.23f1

Resolution Note (fix version 2020.2):

Fixed versions:
2020.2.0a8
2020.1.0b8
2019.3.14f1
2018.4.23f1

Comments (36)

ismaxx

Apr 01, 2020 13:16

thie bug persists in 2019.3.7.f1
faiyaz48

Mar 30, 2020 09:42

um using Line Renderer and Particle System both. I think it happens when I play the Particle System.
Gaspedal

Mar 29, 2020 00:54

I use no Line Renderer, I think it happens when I use a Particle System.
Gaspedal

Mar 29, 2020 00:52

Same here with 2019.3.5f1

Assertion failed on expression: 'task.rasterData.vertexBuffer == NULL'
UnityEngine.GUIUtility: ProcessEvent(Int32, IntPtr)
Feezen

Mar 28, 2020 20:44

Having this issue in LTS versions 2018.4.19f1 and 2018.4.20f1, seems to be caused by line renderer.
glenneroo

Mar 24, 2020 15:52

Here is the relevant forum thread with a lot of users also having this issue, also in earlier versions of 2019:
https://forum.unity.com/threads/2019-3-assertion-failed-on-expression-task-rasterdata-vertexbuffer-null.818181