Unity Issue Tracker - MissingReferenceException error when using VFX Graph DropDown on Wayland
Closed
UUM-113128
MissingReferenceException error when using VFX Graph DropDown on Wayland
Unity: Native Editor Window Foundation
Linux
Won't Fix
6.3.X
6000.3.0a2 onwards
This caused by fundamental problems with GTK implementation with Wayland and cannot be easily fixed. Furthermore, any potential fix is very risky and could cause other (worse) issues elsewhere.
Steps to reproduce:
Create a new Unity project using the Universal 3D template
Install the Visual Effects Graph package
Create a new Visual Effect Graph (Assets > Create > Visual Effects > Visual Effect Graph)
Select "Simple Loop" and press the Create button
Double click the created Visual Effect Graph to open it in the Visual Effect Graph window
Click on the Render Quad in the Visual Effect Graph window
Click repeatedly on the Use Base Color Map's dropdown in the Inspector window
Observe the Console window and the Editor
Actual results: Error printed to console: "MissingReferenceException: The object of type 'UnityEditor.ContainerWindow' has been destroyed but you are still trying to access it."
Expected results: No errors are thrown and the Editor is usable
Reproducible with versions: 6000.3.0a5
Not reproducible with versions: 6000.3.0a1
Tested on (OS): Ubuntu 24.04
Notes:
Does not reproduce on macOS Silicon Sequoia 15.5
Only repros on Wayland and doesn't repro on 2022.04 with X
Update:
The original bug ticket stated other errors were sometimes printed and the Editor would crash. These issues have now been fixed but the MissingReferenceException remains.
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