How to reproduce:
1. Open the “IN-99328_repro“ project
2. Open the "Proto-CustomTerrainGeneration" scene
2. Enter Play Mode and witch to Scene view
3. Select the "PrototypeTerrainGenerator" GameObject
4. In the Inspector, on the "Prototype Terrain Generator" component, change the "Vertices Per Patch Dimension" value to 8
5. Right-click the "Prototype Terrain Generator" component header and choose "Regenerate"

Expected result: The Mesh matches the new size of the GameObject
Actual result: The Mesh remains the same

Reproducible with: 2023.3.0a18, 6000.0.47f1, 6000.1.0b15, 6000.2.0a9
Not reproducible with: 2021.3.51f1, 2022.3.61f1, 2023.3.0a17

Reproducible on: Windows 10, Windows 11
Not reproducible on: No other environment tested

Notes:
- If you disable GPU Resident Drawer in the URP settings, then repeat these steps, the issue does not occur.
- The Mesh is drawn if you move the GameObject and undo (ctrl+Z)