Musical Typing issue in MainStage with Windows keyboard

So basically I was using a keyboard meant for windows and hit alt (which is option key for Mac) and something in the upper right region of the keyboard, I was trying to turn on the musical typing feature. I eventually did but and it was working fine but whenever I would move to a lower octave, anything below C-1, would sound extremely low. A physical midi keyboard works fine it's only musical typing. I tried it in another default concert and it would still do this. Can anyone help?

[Re-Titled by Moderator]

Original Title: MainStage Musical Typing Bug