I'm not sure why it wouldn't meet the minimum requirements, but a better way to do this is to just copy the image directly your your Media Manager. Open the iPad 5 device page, click Edit, and click the gear icon on the bottom right of the photo:
[image|94872|align=center]
Try that instead of going through the extra steps of downloading and re-uploading it.
That said, we have plans for the new iPad, which means we will probably be either creating a new device page from scratch or else heavily reworking yours! So, you might wanna hold off just a bit before you invest too much time. ;)
