How to reproduce:

1. Import the attached VFX to any project
2. Open VFX and make sure that graph window is visible
3. Add VFX to the Scene
4. Enter Play Mode

Expected result: No errors thrown

Actual result: Errors thrown

Note: Funtionality does not seem to be affected

Reproducible with: 6000.0.50f1, 6000.4.0a2

Not reproducible with: 6000.0.49f1

ArgumentException: Context does not exist
UnityEditor.VFX.VFXData+<GetAttributesForContext>d__42.MoveNext () (at ./Library/PackageCache/com.unity.visualeffectgraph@c8807469794f/Editor/Data/VFXData.cs:248)
System.Linq.Enumerable.Any[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate) (at <35debb714aea4cd9b0221bb8b3f5103e>:0)
UnityEditor.VFX.VFXBasicInitialize.GenerateErrors (UnityEditor.VFX.VFXErrorReporter report) (at ./Library/PackageCache/com.unity.visualeffectgraph@c8807469794f/Editor/Models/Contexts/Implementations/VFXBasicInitialize.cs:137)
UnityEditor.VFX.VFXErrorReporter.GenerateErrors () (at ./Library/PackageCache/com.unity.visualeffectgraph@c8807469794f/Editor/Models/VFXErrorManager.cs:156)
UnityEditor.VFX.VFXErrorManager.GenerateErrors () (at ./Library/PackageCache/com.unity.visualeffectgraph@c8807469794f/Editor/Models/VFXErrorManager.cs:48)
UnityEditor.VFX.VFXGraph.RecompileIfNeeded (System.Boolean preventRecompilation, System.Boolean preventDependencyRecompilation) (at ./Library/PackageCache/com.unity.visualeffectgraph@c8807469794f/Editor/Models/VFXGraph.cs:1684)
UnityEditor.VFX.UI.VFXViewWindow.Update () (at ./Library/PackageCache/com.unity.visualeffectgraph@c8807469794f/Editor/GraphView/VFXViewWindow.cs:385)
UnityEditor.HostView.SendUpdate () (at /Users/bokken/build/output/unity/unity/Editor/Mono/HostView.cs:708)
UnityEditor.EditorApplication.Internal_CallUpdateFunctions () (at /Users/bokken/build/output/unity/unity/Editor/Mono/EditorApplication.cs:401)