How to reproduce:
1. Open the project “IN-115789_Default”
2. Open the “OutdoorScene” scene
3. In the Hierarchy, select ECS → Player
4. In the Inspector change Cast Shadows to Off
5. Observe the Game View tab

Expected result: The “Player“ GameObject (capsule shaped) remains pill shaped
Actual result: The “Player” GameObject (capsule shaped) turns into a cube

Reproducible with: 6000.0.0b16, 6000.0.59f1, 6000.2.7f1, 6000.3.0b4, 6000.4.0a1
Could not test with: 6000.0.0b15 (many package errors that require code changes and break the affected scenes)

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

Note: On the user’s computer, the bug can be observed on both Scene View and Game View. During my testing, the issue can only be observed in the Scene View