Adding Animation Property throws Invalid GUILayout error and breaks the Animation window

Steps to reproduce:

1. Open the attached project
2. Open the SampleScene
3. Select the Cube object
4. In the Animation window, switch from  Dopesheet to Curves mode
5. Add Mesh Property to the Animation

Actual results: Invalid GUILayout errors are thrown and part of the Animation window is no longer rendered

Expected results: Mesh Property is added to the Animation without any warnings or errors

Reproducible with versions: 6000.2.0a9 (2aeb7e9a02a2), 6000.2.0a10

Not reproducible with versions: 2022.3.61f1, 6000.0.48f1, 6000.1.1f1, 6000.2.0a8

Tested on (OS): macOS 15.4.1

Notes:

• Property is added without issues when in the Dopesheet mode