It' still doing it on my iPad - I've deleted the pictures referred to in my post on the original thread, but I've now uploaded a couple more - the first one was a pictures of a Viking ship with noggin the nog on board - it loaded ok at the top and I moved it to the bottom. I then tried again with the picture of the owl, which had uploaded both at the top, as normal and at the bottom, replacing the noggin picture.
I tried to see if the same thing happened on the PC (Windows 8.1) but from there I can't get anything to upload at all. (Screenshot of message below)
Sorry for the late reply Rowan, I only just saw there were responses!
It's pictures on my profile that I'm trying to upload via my iPhone using the desktop website on safari. I haven't actually tried using my laptop to upload any pictures so I'll give that a go and see what happens