Your carousel is in the wrong order. The images are fine.

Use zero-padded filenames and an explicit ordered list. The filenames help a human inspect the folder; the list tells the next tool exactly what to do. Do both.

Open the final export in order before handing it off. Check the first slide, the transition into the product and the last slide. Also check that the caption belongs to this version of the carousel. Perfect images with yesterday’s caption are still the wrong deliverable.

A manifest is only useful if the receiving workflow reads it. If your publishing tool expects an array of image URLs, preserve the order when you build that array. Don’t rely on the order a storage browser happens to display.