Certain avatars does not upload, at all.
I have gone through the server logs to look for errors (we use Litespeed web server), there are none. What happens is that when you click select an avatar it simply never ends. No errors, no nothing.
I have checked that all files, sub folders of data and internal_data are 777, which does not help.
The odd part is that some images to work, I tried using the exact same extension, the exact same dimensions and so on but I were unable to upload anything of my own, also not all images found on the internet will upload either (I have made sure they are a supported format).
The site in question is http://nyancraft.com
I can provide a test account for those whom do not wish to create an account.
I can provide necessary PHP info if required.
edit: I realised that uploading attachments has similar issues without any errors.