Reproduction steps:
1. Create a new 3D (Built-in Render Pipeline) template project
2. Create a Tree GameObject (GameObject > 3D Object > Tree)
3. Select newly created GameObject and press “Add Leaf Group” button in the Inspector
4. Increase the Frequency and add LOD Group Component
5. Add Tree Renderer to the LOD Group and observe the Preview window
6. Turn the Tree around in the Preview window and observe

Actual result: Tree GameObject appears grey when rotated
Expected result: Tree GameObject displays correct colours

Reproducible with: 6000.0.65f1, 6000.3.4f1, 6000.4.0b3
Couldn’t reproduce with: 6000.5.0a4 (No 3D (Built-in Render Pipeline) template)

Reproduced on: macOS Tahoe 26.2 (M4), Ubuntu 24.04