After returning to the song select, pick a song and delete it.
The play button should now be locked for all songs.
Workarounds:
Loading into the tutorial level, then returning to the main menu seems to fix it.
Restarting the game also fixes it as well.
Notes:
If you start up the game, then try to delete a song without having played a song first, the play button will not lock, and there is no issue. You must play a song first then return to the menu.
Steps to reproduce:
Workarounds:
Notes:
Here is what it looks like when the button is locked https://i.imgur.com/JbpH5UX.png