I have been creating new products for our store via the REST api and directly on the admin website. We're having the same problem on both when uploading images via a url, namely a presigned url that we generate (normal public images work fine). The presigned url is viewable in the browser, and is even momentarily previewed in the upload section before the following error appearing:
The REST API is showing a similar issue
Is there a known issue with presigned url not working when trying to upload product images? Or maybe I'm missing something but can't see anything in the docs/support forum. It looks like it's inferring the image is a .png when it is however a .jpg 🤷
PFA the Signed URL that'll be active for a week if anyone wants to try it on their store and maybe provide some insight.