How to reproduce:
1. Create a new 3D Cross-Platform (URP) Project
2. Create a new Shader Graph (Right-click in the Project Window -> Create -> Shader Graph -> URP -> Unlit/Lit Shader Graph)
3. Open up the newly created Shader Graph
4. Create a Voronoi Noise Node (Right-click -> Create Node -> Type "Voronoi" -> Click Enter)
5. Create a Time Node (Right-click -> Create Node -> Type "Time" -> Click Enter)
6. Connect the Time Node to "AngleOffset" or "CellDensity" attributes on the Voronoi noise node
7. Observe the Voronoi preview

Expected result: The Noise node becomes animated, it values are changing over time
Actual result: The preview gets greyed out, and if you try to create another Voronoi noise node that node will not have a preview at all, just a grey box

Reproducible with: 6000.0.0b16, 6000.0.0b15
Not reproducible with: 6000.0.0b14

Reproduced on: macOS Sonoma 14.4.1 (M1)

Note: Might be reproducible with more than these nodes