Forum signature img broken

Not sure where to post this, but the banner I use in my signature on this forum is broken. I see other users' signature img working, so I wonder what is going on. Not long ago it was not possible to adjust the signature settings, so I've not changed anything but just replaced the banner file on my server. The file still works when I access it online, but in my signature it is broken.

The only reason I could think of is that EA no longer accept files posted anywhere but on .com domains, which would be quite silly as they have customers worldwide.

Do anyone know of recent changes re signature?