Can you try a couple more .png files and .jpg files just to see if it is a file type thing? We’ll break out our Android device also 🤣
Discussion
This may be because your png is really a jpg by Amethyst thinks it’s a png because the extension. nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z might can fix
Fixed already on our side, relaxing the check a little 🫡