There are not an alpha channel for AE. Solution in Photoshop Export/Quick Export as PNG It works. If the batch command in Automate doesn´t work and you got a lot of images, then use a batch exporter for PNG with alpha channel. You can use Preview in Mac, open all the images, select all the Images in the sider bar, and an output folder. EDIT/Export (16bytes, alpha channel). Don´t forget check "alpha channel"
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