Textures turn black in Player when they are referenced by a script instance

How to reproduce:
1. Open “BlackTextureInPlayerBug.zip” project
2. Open “TEST_SCENE”
3. Build and Run the Project
4. Observe the Player

Expected result: Both textures show up correctly
Actual result: “T_Soldier_Helmet_Fine” texture shows up in black

Reproduced with: 2022.1.0a16, 2022.3.14f1, 2023.2.2f1, 2023.3.0a16
Not reproducible with: 2021.3.32f1, 2022.1.0a15

Reproduced on: Windows 10 (by reporter), Windows 11
Not reproducible on: No other environment tested

Notes:

• Not reproducible in a new project
• Only reproducible in Player
• Enabling Read/Write in Advanced settings prevents the texture from becoming black in Player
• Might be related to the Polybrush package (according to the reporter)