Missing SING blocks?

I’ve got 2nd box with the book Animals, and it indicates about “Sing” block. However, they were not included. Are they going to be included in 3rd box or missing from 2nd box?

Hello,

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Stay safe and well.

Sincerely,
Vicky K.

It’s not just you, the yellow sing block was switched to box 3. The blocks you should get with box 2 are shown on https://learnwithmochi.com/products/mochis-essential-adventures-pack. However, you can do the exercise using the red ‘sleepy’ block from the basic set.