Error 422 when using r2/s3 presigned url for zip file

[oniswap]

Hello,

I'm getting an error 422 Unprocessable Entity when I use a presigned url for a zip file in input_images field:

const signedUrl = await getSignedUrl(s3Client, command, {
    expiresIn: 24 * 3600,
  })

await replicate.trainings.create(
      "ostris",
      "flux-dev-lora-trainer",
      "d995297071a44dcb72244e6c19462111649ec86a9646c32df56daa7f14801944",
      {
        input: {
          input_images: signedUrl,
...