Search Issue Tracker

Fixed in 12.0.0

Fixed in 10.4.0



Found in [Package]


Issue ID




[Shader Graph] Graph throws a NullReferenceException and becomes unresponsive when a Keyword or a complex Sub Graph is added

Package: Shader Graph


How to reproduce:
1. Open the attached project named "Bug Repro"
2. Open the "Can't Add Keyword" shaderGraph file. Located in - Assets/Shaders
3. In the Graph's Blackboard Add a new Enum Keyword

Expected result: Enum Keyword is added or an appropriate error message is thrown informing why the Keyword could not be added
Actual result: NullReferenceException is thrown after the Keyword is created. ShaderGraph becomes unusable after this point, throwing ArgumentNullException while trying to interact with the graph

Reproducible with: 10.2.2(2020.2.3f1), 11.0.0(2021.1.0b3), 12.0.0(2021.2.0a2)
Could not test with: 2018.4(ShaderGraph was in early preview), 7.5.2(Graphs required for the repro break on downgrade)

Alternative repro steps:
1. Open the "Can't Add Sub Graph" shaderGraph file. Located in - Assets/Shaders
2. Try to add the Sub Graph named "Toon Shading Modular"

1. Seems to occur with complex nested graphs, when there is a high number of keywords and properties used

  1. Resolution Note (fix version 12.0.0):

    Fixed in - Unity 2021.2.0a10 and ShaderGraph 12.0.0

  2. Resolution Note (fix version 10.4.0):

    Fixed in - Unity 2020.3.2f1 and ShaderGraph 10.4.0

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.