How do I fix so my background music switches during layout S

I have multiple layouts, with different background musics.

Sometimes the music change work, sometime, it does not. What am I doint wrong?

Here is for the first layout

And this is when the new layout starts

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And sometimes when I move the player, the animiation wont play? whats the reason behind this? Its like a gamble, if you move it works, then if you jump the jump animation works, but then when you are on the ground the movement animation wont work