How to reproduce:
1. Create a new HDRP project
2. In the Project window, right-click -> Create -> Shader Graph -> Any Shader Graph
3. Open the "Create Node" menu -> Switch
4. With the Node selected, in the Graph Inspector add cases until you reach "Case \" (after the alphabet"
5. Observe the results
Expected results: The "Case \" doesn't break the node
Actual results: The error is shown on the Node
Reproducible with: 6000.5.0b9, 6000.6.0a6
Can't test with: 6000.0.76f1, 6000.3.15f1, 6000.4.8f1 (No Expression node)
Reproducible on: macOS Tahoe 26 (M1)
Not reproducible on: No other environment tested
Note: The cases can't be renamed and this is a default name that breaks the node, meaning that past this case, no cases can be added