Sprite Shape Corners and Edges are invisible when a closed Sprite Shape is used

Reproduction steps:
1. Open the attached “IN-95260.zip” project
2. Open the “SampleScene_Spriteshape” Scene
3. Select the “SSP” GameObject from the Hierarchy
4. In the Inspector, make sure ‘Is Open Ended’ disabled
5. Observe the Sprite Shape in the Scene view

Expected result: All the Sprites in the Sprite Shape are visible
Actual result: Sprite Shape Corner and Edge (that uses a different Sprite Variant) are invisible

Reproducible with: 6000.0.37f1, 6000.0.39f1, 6000.1.0b7, 6000.2.0a4
Not reproducible with: 2022.3.58f1, 6000.0.36f1

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