Opening Credits screen from Main Menu doesn't play C418 Alpha soundtrack

When opening the Credits screen from Main Menu, the game doesn't play C418 Alpha soundtrack, instead it will keep playing the Main Menu soundtrack

Steps to reproduce:

1. From Main Menu, open settings > general, and click "Credits" button

Expected results:
The game stop playing currently played Soundtrack and start playing C418 Alpha soundtrack

Observed results:
The game will keep playing the Main Menu soundtrack