Steps to reproduce:
1. Create a new Unity project
2. In the Hierarchy, create any GameObject
3. Open the Animation window (Window -> Animation -> Animation)
4. With the GameObject selected, click "Create" in the Animation window
5. Open Animator window (Window > Animation > Animator)
6.Select Create State > From New Blend Tree from the context menu
7.Double-click the Blend Tree to enter the Blend Tree Graph
8. In Blend Tree Graph workspace select Blend Tree Graph
9. In Inspector > Parameters change “Blend” name to “NewParameter”
10. Observe the Blend Tree Node with new parameter name

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Actual results: “NewParameter” parameter name is hidden by the slider, Blend Tree doesn’t not adapt a bigger size
Expected results: "NewParameter" parameter name should not get hidden by the slider

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Reproducible with versions: 6000.0.65f1, 6000.3.4f1, 6000.4.0b4, 6000.5.0a4

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Tested on (OS): macOS Silicon Tahoe 26.2 (M1)