How to reproduce:
1. Open attached project "1391581_case.zip"
2. Open the "SampleScene" Scene
3. Press Play
4. Press the "TestButton" Button in the Game view
5. Check the Console window for a Debug message

Expected result: The pressed Button sends a message
Actual result: The pressed Button doesn't initialize a function

Reproducible with: 2020.2.0b9, 2020.2.7f1, 2020.3.24f1, 2021.2.7f1, 2022.1.0b2
Not reproducible with: 2019.4.34f1, 2020.1.17f1, 2020.2.0b2, 2020.2.0b8
Could not test with: 2020.2.0a1, 2020.2.0b1 due to errors

Note: Disabling the Local Game View Menu in Preferences > Localization makes the Button work as intended