Legacy Runtime Font displays Japanese characters as ◻︎◻︎◻︎◻︎

Reproduction steps:
1. Open the attached project “ReproProject“
2. Open the scene “Assets/Scenes/SampleScene.unity”
3. Enter Play mode
4. In the Game View, observe the text displayed after the “Legacy” keyword (i.e Legacy: ___)

Expected result: Legacy: あいうえお
Actual result: Legacy: ◻︎◻︎◻︎◻︎

Reproducible with: 2023.2.17f1, 2023.2.19f1
Not reproducible with: 2021.3.37f1, 2022.3.25f1, 2023.2.16f1, 6000.0.0b15

Reproduced on: Windows 11 23H2 (22631.3007), macOS 14.4.1 23E224 Darwin 23.4.0 (user’s)
Not reproduced on: No other environment tested

Notes:

• Reproducible in Standalone Player
• Not reproducible on Android