Reproduction steps:
1. Open the user's attached project "SBP.zip"
2. Open the "Test" Scene
3. Click "Test/Build Asset Bundles" in the menu bar
4. Enter Play mode and observe the shadow on the floor
5. Open the "BaccaratTable" Scene located in "Asset/Bundles/2"
6. Assign the "Floor" material to the Cube in the Scene and Save the changes
7. Click "Test/Build Asset Bundles" in the menu bar
8. Open the "Test" Scene
9. Enter Play mode and observe the shadows on the floor

Expected result: The UV values are preserved when the implicitly included import settings are copied into the bundle during the bundle Build and one shadow is visible after both steps 4 and 9
Actual result: The UV values are lost during the asset bundle Build and there are many small shadows on the floor instead of the one after step 9

Reproducible with: 2021.3.6f1, 2022.1.10f1, 2022.2.0b2
Could not test with: 2020.3.37f1 (Script compilation errors), 2023.1.0a4 (IndexOutOfRangeException after step 9)

Reproducible on: macOS 12.4 (Intel)

Workaround: Explicitly including the import settings into a bundle:
1. Open the AssetBundle Browser window
2. Assign the "BJ_Floor_01" asset to bundle1
3. Click "Test/Build Asset Bundles" in the menu bar
4. Enter Play mode and observe the shadows on the Plane