How to reproduce:
1. Open the attached “IN-140892” project
2. Open the “SampleScene”
3. In the Hierarchy, select the “Spline” GameObject
4. In the Inspector, find and expand Spline Extrude component
5. Set “Sides” property to 40 or any higher value (Shape Extrude > Settings > Sides)
6. Observe the spline in the Scene view
Actual result: Due to overflow mesh snaps to splines beginning and the rest of the spline is not extruded
Expected result: Mesh is updated and rendered with more sides
Reproducible with: 2.7.1 (6000.0.23f1), 2.8.4 (6000.6.0a4)
Not reproducible with: 2.6.1 (6000.0.23f1)
Reproducible on: Windows 11, macOS 26.4 (M1 Pro)
Not reproducible on: No other environment tested