Sprite sheet creation problem

Hello. I recently made a model and I am trying to export a sprite sheet it, but when I click the model I want to export and create a sprite sheet, it comes out differently than before.
For the layer, I used an advanced layer, and I used alpha + overlay to add shadows to the picture.

This is what i want to make

But when I try to create spritesheet

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Previously the frame was 14 frames, but the sprite sheet only has two frames.